How many of the following numbers are prime numbers? {7, 17, 27, 57, 77, 97, 117}

Solve for y. a (n+y) = 10y + 32

What is the sum of the first 30 terms of the arithmetic sequence? 6,13,20,27,34 ...

A right triangle has a leg of 12 cm and a hypotenuse of 19 cm. What is the length of the other leg?

An urn contains 8 black and 6 pink balls. Five balls are randomly drawn from from the urn in succession, with replacement. That is, after each draw, the selected ball is returned to the urn.

80% of 25 is equal to what

Astronauts use stool in space that weighs 5 ounces on earth how many grams does the tool weigh round your answer to the nearest hundredth

The product of - 4 and a number is 36

The price of a shirt is reduced from $27 to $20. what is percentage decrease in the price?

Solve the equation - 1/2 = c-6/7

Dakota mixes two cereals for breakfast. One gram of cereal A has 6 milligrams of sodium and 7 calories. One gram of cereal B has 8 milligrams of sodium and 5 calories.