Pamela is making cupcakes. The recipe uses 5 ounces of chocolate fudge to make 20 cupcakes. How many ounces of chocolate fudge will be used to make 60 cupcakes?
A. 3 ounces
B. 4 ounces
C. 12 ounces
D. 15 ounces

In the equations, a and b represent the price per night for a room in hotel a and hotel b, respectively, w weeks after september 1 last autumn. what was the price per night in hotel a when it was equal to the price per night in hotel b? a = 240 − 20w b = 320 − 30w

Twice the sum of a number and 4 is equal to three times the difference of the number and 7. find the number.

Combine like terms to make a simpler expression 3z+z