Minerva buys used bicycles, repairs them, and sells them for a profit. She bought a bicycle for $10, repaired it, and sold it for $50. What was the percent increase in the price of the bicycle.

A. 400%

B. 80%

C. 40%

D. 4%

Choose the correct simplification of (9x3y2) 2. 18x5y4 81x5y4 18x6y4 81x6y4

4 2/3 x 4/5 x 8 1/3 =

What's the degree of 1 over 9

Marcel Park is weeding the rectangular vegetable garden. The garden has an area of 599.5 square feet. If the garden is 22 feet wide, how long is the garden? Justify your procedure!

Diana is a homebound teacher who charges $45 per hour plus an additional flat fee of $20 for travel. The equation that represents this situation is y = 45x + 20, where x represents the number of hours of classes and y represents the total cost.

Jada earns $7 per hour mowing her neighbors' lawns. Andre gets paid $5 per hour for the first hour of babysitting and $8 per hour for any additional hours he babysits.

A combination lock has numbers 0-49 on it. How many different 3-digit lock combinations are possible if no digit can be repeated?

Carly is 3 times older than her brother's age. The sum of their ages is no more than 24 years. a. x+3x≤24 b. x+x+3≤24 c. x+3x<24 d. x+x+3<24 Using the inequality, find the oldest age Carly's brother can be

In triangle ABC, the measure of angle A=60 degrees, the measure of angle C=60 degrees, and the length of AB is 7 inches. Which of the following must be true? F) AC>7 G) AC<7 H) AC=7 J) AC+AB>2BC K) AC+AB<2BC

Anna is in a cave 40 feet below the cave entrance. She descends 13 feet, hen ascends 18 feet. Find her new position relative to the cave entrance