True or false the fraction 9/21 is in lowest terms

eric made $168 for 12 hours of work. at the same rate how many hours would he have to work to make $112?

Mike put 2500 in a saving account that earns 2.5 interest annually for 8 years how much will make have in his account after 8 years

What is * 9=234? since this has to be At least 20 characters this is for a summer school project.

Doug long jump was 3 yards. Jason long jump was 98. How much longer was Jason jump then Doug?

The slope of the equation is 3x-6y=12?

Find the diagonal of a square whose sides each measure 3v2 units.

10 x (5 x 4) = (b x 5) x 4

5 Connie is working to earn $200. She earns $25 mowing her grandmother's lawn and $60 for a day of housecleaning. Which decimal represents the part of the money Connie still needs to earn and why? A 0.575 B 0.115 C 0.425 D 0.85

A farmer sells 9.7 kilograms of apples and pears at a farmer's market. 1/4 of the weight is apples and the rest is pears. How many kilograms of pears did she sell at the farmer's market What is the fraction

An penguin is 45 inches tall. It is 24 inches taller than a rockhopper penguin. Write and solve an equation to find the height of a rockhopper penguin. Is your answer reasonable? Explain.