Solve this proportion. Show your work. 7/12 = 42/x

What is the base 8 representation of 30

A sculptor has a copper piece in the shape of a rectangular prism. The piece measure 5 miles by 0.9 mile by 0.02 mile and its mass is 894 kilograms. What is the density of the copper? Enter your answer as a decimal in the box.

You will need 10 CAT6 cables for wiring computers in a new office. A local computer store sells them for $4.00 each plus 6% sales tax. You can order them from an Internet shopping site that offers them for $3.50 each plus $5.

Ann is grouping 38 rocks. She can put them into groups of 10 rocks or as single rocks. What are the different ways Ann can group the rocks?

What's the distance between A (15,21) and B (24,-19)

Fill in the missing terms of the following sequence 12,_,_, - 3, _, - 13

Factor out coefficient of 3/8d+3/4

Terrance trains at a rate of 6 miles every half hour and Jesse trains at a rate of 2 miles every 15 minutes

Find the magnitude of the vector from the origin to (8. - 6) and write the vector as the sum of unit vectors. 1. 12, 87 + 67 c. 12. 87-67

Evaluate the following expression b=3 c=-3 (b-c) (c+2)