How do i go about calculating 40% of 80

1) h - 16 ≤ - 24 2) y + 6 ≥ - 13 3) - 3 < n - 8 4) 3 ≤ m + 1.4 5) x + 0.7 > - 0.3 6) w - 8 ≥ 5.6 I don't know how to do this so i need answers but also the work so i know how to do it

How can you round 25.691 to the greatest place

Hamster heaven charges an annual fee of $20 plus $2.50 for each day of hamster activities you attend. Hamster fun world charges an annual fee of $35 plus $1 for each day of hamster activities you attend.

Phil had made $1200 deposits in an annuity due at the beginning of each quarter in an account earning 6% interest compounded quarterly.

Which of the following methods would be easiest to use to solve 2x^2 + 5x - 11 = 0 A) factoring B) isolating the x^2 term and finding the square root of both sides C) using quadratic formula D) all three methods would be easy and effective

What does a computer do when it's hungry

Brandie is trying to decide between two cell phones. One is free with a 2-year contract, but she will have to pay the sales tax of 8% on the original price$399 and the monthly charge is $10 more than she currently pays.

If the length of side a is 16 centimeters, the length of side b is 10 centimeters, and m = 42°, what is the measure of? Round your answer to two decimal places.

Solve for y. 18y - 6 = - 30

Multiply. (3x + 2) (3x - 2) A. x² + 12x - 4 B. 9x² - 12x - 4 c. 9x - 4 D. 9x² + 4