Peter has decided to save $30 each week to buy a new stereo system. Write a direct variation equation for the amount of money, m, that Peter has saved in, w, weeks.

40cents = ? In nickels

Are 9 (4-x) and 36-9x equivalent expressions

There are 3,280.84 feet in a kilometer. There are 5,280 feet in a mile. To the nearest hundredth, how many kilometers are in a mile?

If f (x) = 4x3+3x2-5x+20 and g (x) = 9x3-4x2+10x-55, what is (g-f) (x) ? A) 5x3-7x2+15x-75 B) 5x3+x2+5x+35 C) 13x3-x2+5x-35 D) - 5x3+7x2-15x+75

Determine which is the greater amount of money. Write each as a fraction of a dollar in lowest terms. A. 15 dimes or 7 quarters b. 45 pennies or 8 nickels c. 100 pennies or 25 nickels d. 208 dimes or 50 quarters e. 1,478 nickels or 295 quarters

What do you use to calculate flooring cost Perimeter area surface area volume

Thru (4,0) parallel to y=1/2x+5

Find the vertex of this parabola y=x^2-2x

F (x) = 2x - 1 and g (x) = x2 - 3x - 2, find (f + g) (x) A. (f + g) (x) = x2 - x - 3 B. (f + g) (x) = x - 3 C. (f + g) (x) = - x - 3 D. (f + g) (x) = x2 + 5x + 3

What is 0.40x+10=45 in math