What is the value of 6x + 12 when 2x + 10 = 7?

How many ball bearings, each with a diameter of 1 cm, can be made using 5.24 cm3 of molten steel?

two cities are 609 miles apart with a scenic highway connecting them. Sue lives in one city and john lives in the[..]

It takes a motor boat 32 hours to go downstream and 48 hours to go upstream. How long does it take for an unpowered[..]

Which value of x solves the equation cos x = sin (20+x), where 0 x 90?

Jack invests $1000 at a certain annual interest rate, and he invest another $2000 at an annual rate that is one half[..]

Omar found three pieces of cable in his tool drawer. Here are their lengths (in meters). 4.7 , 7.35 , 13[..]

The length of a rectangle is twice the width. The area is 328 square centimeters. Find the length and width.

The force required to compress a spring varies directly as the change in the length of the spring. If a force of 12[..]

Ben Franklin's gift of 7,000 to new York city grew to 9,000,000 in 200 years. At what interest rate compounded[..]