Solve the following system of equations algebraically for all values a b c

-3a-b-3c = - 8

-5a+3b+6c = - 4

-6a-4b+c = - 20

Round 2815 to nearest thousand

Find the height of a cylinder with a volume of 274.89 and radius of 5. 27.4 ft 25 ft 7 ft 3.5 ft

Tanmayi wants to raise $175 for a school fundraiser. she haa raised $120 so far. how much more does she need to reach her goal?

Simplify the following expression. 1415 - 12

Add 345 000 to 1.9 million - what is this answer expressed as scientific notion?

Write the equation of a circle with a center at (2.5, - 3.5) and a diameter of 12. Choices are x + 2.5) 2 + (y - 3.5) 2 = 12 (x - 2.5) 2 + (y + 3.5) 2 = 36 (x + 2.5) 2 + (y - 3.5) 2 = 36 (x - 2.5) 2 + (y + 3.5) 2 = 144

1. f (x) = (x 81+2 What is the domain?

When rounding a number, what should you do with the digits to the right of the place to which you are rounding

Trevor earns $7.80 an our take-home pay and works 20 hours each week to buy a new laptop computer to take to college that cost $780 how many weeks will it take for church to achieve his goal

What is each sum or difference? (7-2i) + (-3+i) (1+5i) - (3-2i) (8+6i) - (8-6i) (-3+9i) + (3+9i)