18 first-graders and 72 other students attended a school assembly. What percentage of the students at the assembly were first-graders?

Determine if each set of ordered pairs represents a function. (2, 3), (6,-5), (-1,3) (1,9). (-3,-2) (1.4) 7,-4), (0,9), (2,-2) (0,3), (0,7). (4.0) (-6,5), (-5, 6), (8, 2)

Y is inversely proportional to (x + 2) Write down an expression for y in terms of x and a constant k.

If 8x + 8y = 4 and 4x + 2y = 12, what is the value of x? A) - 5 B) - 11 2 C) 5 D) 11 2

The marching band has 70 members. The band marches in equal rows of 10 members each. How many rows does the band make? 70 : ___ = 10 A) 8 * 10 = 70 B) 6 * 10 = 70 C) 7 * 10 = 70 D) 10 * 10 = 70

Multiply 2x (x^2 + 5)

The booster club is having a bake sale. The members place 25 baked goods in each bag. There are 630 baked goods donated. About how many bags will the club have for sale

Charlene is 8 years older than Aaron. The sum of their ages is 44. What are their ages?

Lenny earns at least $50 a day at his job. Write an inequality showing how much Lenny could earn on any day at his job.

A rectangle that measures 2 feet by 11 feet. What is the area of the rectangle? square feet

Solve the equation if x = 7. 5x + 9