Luis is 5 times as old as Tiffany and is also 40 years older than Tiffany.

How old is Luis?

34+x=46; x=12 is this problem a solution

Convert 485 cm to millimeter

Which is equivalent to 6x - 8y? -2 (-3x + 4y) or 2 (3x + 4y)

A circle with the radius of 1cm sits inside a 3cm*4cm rectangle. What is the area of the shaded region? (Round you final answer to the nearest hundredth)

Corey has 42 feet of fencing around his garden. The garden is rectangular in shape, and its length is equal to twice the width minus 3 feet. Define the variables, and write a system of equations to find the length and width of the garden

A cone is inscribed in a regular square pyramid. If the pyramid has a base edge of 6" and a slant height of 9", find the volume of the cone.

Solve for x. Must be simplified 15<-5x

Simplify the following expression. (3 + 8 x) + 7 x 3 + 15 x 18 x 18 + x 11 x + 7

Round 9 over 16 to 0 1/2 or 1

Diego measured the length of a pen to be 22 cm. The actual length of the pen is 23 cm Which of these is closest to the percent error for Diego's measurement? a. 4.3% b. 4.5% c. 95.7% d. 104.5%