A bookstore had 60 copies of a magazine. Yesterday, it sold 1/4 of them. Today, it sold 2/5 of what remained. How many copies does the bookstore have left?

Mother is m years old, and she is four times as old as her daughter. How much older is the mother than her daughter?

Select the proper placement for parentheses to speed up the addition for the expression 2 + 9 + 8 + 1 A. (1 + 2) + (9 + 8) B. (9 + 2) + (8 + 1) C. (8 + 2) + (9 + 1) D. (8 + 9) + (2 + 1)

What causes the Earth to have magnetic field?

What is the tan of 30 degrees

Given ƒ (x) = - 10x + 45, find x when ƒ (x) = 15.

Rearrange the following group of numbers from smallest to largest. 2.7, 2.06, 2

Is it possible for the area of a figure to change after it is translated?

The larger of two number is 12 more than smaller number. If the sum of the two numbers is 74, find the two numbers

How can you explain x - 0.30x = 8.96?

Website W receives orders for its products every day. What is the Standard Deviation of the number of orders that Website W received daily for the past 5 days?