20% of what number is 90?

Combining like terms with negative coefficients 8t+1 + (-4t) + (-6)

The shortage of agricultural labor during World War I was largely filled by

Write an algebraic expression using n the sum of a number and 7

Find the value of c to complete the square: x^2-6/5x+c

Jordan used to be paid $16.50 and now he has received a promotion to be manager. now he is paid $21.00 per hour. how much more money does he earn per hour now mangaer than he did when he was jut an employee?

19.83 rounded to the nearest tenth

What is the optimal way to compute a1a2a3a4a5a6?

This is 10 degrees colder than 4°F.

Estimate. then, divide using the standard algorithm and check 45.15/21

Dwayne has $40 in a savings account that earns 5% annually. The interest is not compounded. How much will he have in 1 year?