Which of the following is equivalent to the expression below?

(a^2 - 2b^2 + 3) - (4b^2 - 5) + (3a^2 + 4)

A. 4a^2 - 6b^2 + 12

B. 4a^2 - 6b^2 + 2

C. 4a^2 + 2b^2 + 2

D. 4a^2 + 2b^2 + 12

Convert the temperature from degrees Celsius to degrees Fahrenheit, using the formula below. F = (9/5 * C) + 32 80°C = ? °F

F (X) = 2x^2 + 1. Find and simplify af (X) + b and f (ax+b)

7) In the barn there are 17 animals. Some are cows and some are ducks. There are 54 legs in all. Which system of equations below could be used to find how many cows and how may ducks are in the barn?

Given a = - 3, b = 4 and c = - 5, evaluate ab + c. - 4 - 17 7

Solve the simultaneous equations: 2x+3y=10 x-y=5

Find (7*10^6) - (4*10^4)

Tell which property the st 7. 7. m = m. 7 9. 3 (x - 3) = 3x - 9

How do i do 6 1/2% of $50

Solve 1/2+1/2x=x^2-7x+10/4x by re-writing the equation as a proportion. Which proportion is equivalent to the original equation?

What is the complement of 86.4 degrees?