How to use numbers and symbols to represent mathematical ideas

Which expression is equivalent to 48 + 64

Two times Owen's age plus 7 times Charlotte's age equals 296. Charlotte's age is also 5 times Owen's age. How old is Charlotte

A bicycle is on sale for $189.50. The sales tax rate is 5%. What is the total price?

Create a table of some number pairs that satisfy the equation 3x+y=9

How do you solve this 2 (x + 3) = 8

Can a cube with a base area of 121 square inches fit into a box that has a volume of 729 cubic inches

Solve 5 (x+3) - 2=2-x+9

Round 328 to the nearest ten

A health club surveyed 175 members about which types of equipment they had used in the past month. Of the 175 members, 117 had used treadmills, 89 had used stationary bikes, and 53 had used both types of equipment.

Which system of equations is equivalent to this system? 4 (x+y) = 2x+12 4x+y=x+8 A) 6x + 4y = 12 3x + y = 8 B) - 4x + 4y = 48 3x + y = 8 C) 4x + 4y = 48 3x + y = 8 D) 2x + 4y = 12 3x + y = 8