If the length of the base of a rectangle is increased by 20 percent and the length of the altitude is increased by 30 percent, by what percentage is the area increased?

Simplify the expression if possible by combining like terms 9 (X+5) + 7 (X-3)

In the proportion 2/h=k/10, what happens to the value of h as the value of k decreases?

Caffeine is the active ingredient in coffee and many energy drinks. Once caffeine is consumed it has a half-life in the body of approximately 4 hours. An average cup of coffee contains 100mg of caffeine.

The plates need to go on a tray to be fired in the kiln. The tray is 90cm x 40cm. Each plate has a radius of 8cm. There needs to be a 2cm gap around each plate. How many will fit on the tray?

What is the value of x in the inequality start fraction 15 plus x over three end fraction minus seven less than x? x < - 3 x < 3 x > - 3 x < 18

Aaron, a car salesman at KIA, makes 4% commission on all sales he sells 5 cars for $15,000 each. What was the total commission on his sales.

What is y + 10 = - 3 (x + 10) in slope-intercept form?

Find the values of x when y = 1 y=x^2 - 2x-3

Five girls share 4 sandwiches equally. What fraction of the sandwich does each girl get?

What is the distributive property of 25