Find x if the average of 18, 19, 20, 13, and x is 18.

a. 20

c. 22

b. 21

d. 18

Factorise (x + 5) + (x - 2)

Mindy and Troy combined ate 9 pieces of the wedding cake. Mindy ate 3 pieces of cake and Troy had 1/4 of the total cake. Write an equation to determine how many pieces of cake (c) there were in total.

2 divided by 1 third

What is the opposite of - a

Ellie wanted to know how much her mother spent on groceries weekly, so she saved each week's receipt for a whole year. Which measure of central tendency should be used to calculate the average amount spent per week? A. range B. mode C. mean D.

Simplify: (2x^-2/y^3) ^-4

What is the slope of the line containing (-2,5) and (4,-4) ?

GCF of 110x^3, 30x^4, 60x^8

Which property of real numbers is shown below? 3 + ((-5) + 6) = (3 + (-5)) + 6

A caterer combines 6 quarts of pineapple juice, 7 pints of milk, and 4 cups of apple juice to make smoothies. How many cups can be filled with smoothies? Explain.