Tom bought n DVDs for a total cost of 15n - 2 dollars. Which expression represents the cost of each DVD?

a. n (15·n - 2)

b. n + (15·n - 2)

c. (15·n - 2) / n

d. (15·n - 2) - n

Theo uses a cookie recipe that requires 1/2 flour to make 18 cookies. If Theo wants to make 4 dozen cookies, how much flour should theo use.

Solve using an array and area model 38:4

If you drive for 6 hours and travel 210 miles, what is your rate?

What are the solutions of 3t + 2 < - 7 or-4t + 5 <1?

Ada writes 10 + 8 = 18 on the board. Maria wants to use the commuatative property of addition to rewrite adas addition sentence. What number sentence should Maria write?

Discuss the continuity of the cosine, cosecant, secant and cotangent functions, ... ?

The students in a college statistics class want to estimate what proportion of the students in their college own an ipod. they gather an srs of 500 students. they find that 187 of the students in the sample own an ipod.

Solve proporation h/9=2/3

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What is the value of y 3y-1+4y+7