There are r rows of chairs with 8 chairs in each row. Choose the expression that represents the total number of chairs.

Evaluate x - 20 when x = 3

The price of a visit to the dentist is $150. If the dentist fills any cavities, there is an additional charge of $50 per cavity. If the dentist finds "c" cavities,  the cost of a visit is?

Evaluate when a = 15:
2(a - 5) + 2

Evaluate the expression for the given values of the variable:
3s + 2t; s = 1, t = 1

Select the expression equivalent to....
3(x) + 3(5)

Select the algebraic expression to represent twenty-five added to a number p.

In the expression below  the "9" labeled as?
4d-9

Ten more than four times a number

In the expression below,  the "4" labeled as?
4d-9

I open a saving account with $200 and plan to put $50 per month in the account. The expression represents this situation after x number of months?

Use the distributive property to expand the expression: 4(y + 5x)

Given Expression:
4(y + 5x)
Since, the given expression is in the form of a(b+ c) we can apply Distributive Law which yields ab+ ac as a result.
Similarly, By applying the Distributive Law to 4(y + 5x):
4(y + 5x)
= 
= 4y + 20x.
Hence, the expression 4(y + 5x) becomes 4y + 20x after it's expansion.  

Expand 2(8y + 15)

Given Expression:
2(8y + 15)
Since, the given expression is in the form of a(b+ c) we can apply Distributive Law which yields ab+ ac as a result.
Similarly, By applying the Distributive Law to   2(8y + 15):
2(8y + 15)
=   2(8y + 15)
= 
= 16y + 30.
Hence, the given Expression  2(8y + 15) becomes 16y +30 after it's expansion.

Simplify the following using distributive property of multiplication:
3(3y–4)

Given Expression:
                              3(3y–4)
Since, the given expression is in the form of a(b+ c) we can apply Distributive Law which yields ab+ ac as a result.
Similarly, By applying the Distributive Law to 3(3y–4):
3(3y–4)
= 
= (9y) + (-12)
= 9y -12.
Hence, the expression 3(3y–4) becomes 9y -12 after it's expansion.

Expand the following using distributive property of multiplication:
2(6x − 10)

Given Expression:
2(6x − 10)
Since, the given expression is in the form of a(b+ c) we can apply Distributive Law which yields ab+ ac as a result.
Similarly, By applying the Distributive Law to 2(6x − 10) :
2(6x − 10)
= 
= (12x) + (-20)
= 12x -20.
Hence, the expression  2(6x − 10) becomes 12x -20 after it's expansion. 

There were x cookies at the beginning of a party. By the end of the party, 16 of them had been eaten. Using x, write an expression for the number of cookies that were left.