10+25+89+201+153+392+12+582+917+2021+?

Subtract 7x + 4y - 2z from 4x + 2y.

The sides of a right triangle are x, x+7, and x+8 untits long. Find the side lengh by solving for x.

Equal ratios to 21 to 18

On each of the 18 cards, only one number is written: 4 or 5. The sum of the numbers on all the cards is divisible by 17. How many cards are there with a number "5"?

To find out how many wolves lived in the valley, scientists put tracking devices on 68 wolves. Later that month, the scientists counted 1,032 wolves in the valley and found that 24 of them wore tracking devices.

In a poll of the students in mrs. Rodriguez's class, six say they leave within six blocks of school. This amounted to 20% of the class, how many students are in Mrs. Rodriguez's class?

Can a quadralateral have four obtuse sides

What is the next term of the geometric sequence? 5, 15, 45,

X + 2 = 19 Use any strategy to solve.

The librarian has 94 books to organize. He wants to put 5 books on some shelves and 6 books on other shelves. How could he arrange the books?