When is a rhombus a rectangle?

À. When its sides are parallel

B. When its angles are convex angles

C. When its angles are right angles

D. When its sides are congruent

How do you solve 3x-15=7x-10

8 and 1/5 - 4 and 2/5

You need 252 gift bags for an event. You found a gift bag that costs $6.50 for 21 bags. Your budget is $75. Is the gift bag within your budget? Justify your answer.

A computer store bought a program at a cost of $10 and sold it at a selling price of $14. Find the percent markup.

a rocket is launched from 180 feet above the ground at time t=0. the function that models this situation is modeled by h (t) = -16x^2+96x+180, where t is measured in seconds and h is the height above the ground measured in feet.

A recipe for muffins calls for 1/2 quart of buttermilk, 1/3 quart of skim milk, and 1/16 quart of oil. How many total quarts of liquid ingredients does the recipe call for?

javier will paint the four outside walls of the birdhouse but not the bottom or the roof. What is the area that javier will paint?

Corey and his two friends, Alex and Carl, have a combined weight of 405 pounds. Corey weighs 127 pounds. Alex weighs at least 130 pounds, but no more than 145 pounds. Which inequality represents Carl's weight (x) ?

A sentence using another meaning for the word ray

Diego wanted to find the 7% sales tax on purchases that total $15.99. On his calculator the display showed $1.1193 as the tax. How much sales tax will Diego pay?