Big Ideas Algebra

It costs $45 for a membership to a store. The monthly fee is $15. Which equation represents this situation if y = total cost and x = months?

• y = 60x

• y = 45x + 15

• y = 45 - 15x

• y = 45 + 15x

Find the area of the parallelogram.

• 250 yd²

• 500 yd²

• 47 yd

• 94 yd

Find the area of the trapezoid.

• 105 m²

• 210 m²

• 60 m²

• 150 m²

Find the area of the figure.

• 48 ft²

• 76 ft²

• 62 ft²

• 80 ft²

Find the area of the trapezoid.

• 6 in²

• 12 in²

• 7 in²

• 7 ½ in²

Find the area of the figure.

• 112 cm²

• 96 cm²

• 120 cm²

• 210 cm²

FUNDRAISING Students and faculty raised $6042 for band uniforms. The faculty raised $1780. Write an equation you can use to fi nd the amount a raised by the students.

• 1780 - a = 6042

• 6042 / 1780 = a

• 6042 = 1780 + a

• 6042 - a = 1780

A ____________ of an equation is a value that makes the equation true.

• range

• variable

• dependent

• solution

n + 7 = 9 
n = ?

• 6

• 2

• 16

• 63

 k + 6 = 18 
k = ______

• 12

• 24

• 108

• 1