What percent of 42 is 28

Marliens home. It is asking me to find the area of the living room. It has to be at least 140. I really don't get it.

What is the assessed value of a property with a market value of $100,000.00 and an assessment rate of 25 percent

Solve the equation 5x+7=9x-17

A truck has left Amsterdam with a speed of 52 mph. After 5 hours a car has left Amsterdam with a speed of 78 mph. At what distance from Amsterdam will the car catch up with the truck? Answer should be in miles.

Last night, Poison Ivy activated a canister of tear gas. When the gas was at its strongest, it's density was 129,059 parts per million. After 62 minutes, the gas has dispersed to a level of 92,196 ppm.

What is 1/4 parentheses 4x + 8 in standard form?

a kennel has40 dogs in total, some are puppies and some are adults dogs. the ratio of puppies to adult dogs is 1:4 how many puppies are there

2. Justify each step of the proof. Conjecture: If 2 (x2 + 5) = 60, then x is 5 or - 5. 1. 2 (x2 + 5) = 60 1. 2. 2x2 + 10 = 60 2. 3. 2x2 = 50 3. 4. x2 = 25 4. 5. x = ±5 5.

Andrew had $250 in his savings account. He then deposits the same amount of money each week for 6 weeks. He deposits twice that amount each week for another 4 weeks.

A playground is 50-feet long by 30-feet wide. The length and width of the playground will each be increased by the same number of feet.