21 is 70% of what number

Lucas read 30 percent of his book containing 480 pages what page is he going to read next

In science notation, 670,000,000+700,000,000=?

A rectangle has a length of 11 feet and a perimeter of 48 feet. What is the width in feet of the rectangle?

Alex is ordering his girlfriend a bouquet of flowers for their anniversary. roses cost $5 each and carnations cost $2 each. he would like to include at least 3 flowers in the bouquet. to stay in his budget, he just not spend more than $36.

Solve the system of linear equations by graphing y + 2.3 = 0.45x

Simplify. 4n + 12 + 7n

What is the minimum value of f (x) = x2 - 10x + 19? -10 -6 19 5

What is the value of n in the simplified expression? (4k7) 3 = 4n · (k7) 3 = 64k21

What is the measure of angle ACE shown in the diagram below? 180° and 30°

Two sisters drive 144 miles on a camping trip they averaged at least 32 miles per gallon on the trio describe the number of gallons of gas they used