Simplify

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

2a

8a-8b

2a-8b

2a+8b

The rule for the number of fish in a home aquarium is 1 gallon of water for each inch of fish length. Marta's aquarium holds 13 gallons and Hank's aquarium holds 17 gallons.

The scores on a standardized test are normally distributed with a mean of 500 and a standard deviation of 60. Jake scored 520 on the test.

What is the probability of a regular die, when rolled, showing an odd number? Give your answer as a fraction in lowest terms.

Evaluate - 4n^2 + 11 when n = 3

How to write 8.517 in two other forms

There are two spinners containing only black and purple slices. Spinner A has 3 black slices and 12 purple slices. All the slices are the same size. Spinner B has 2 black slices and 6 purple slices. All the slices are the same size.

13. The outboard engine on Steve's boat uses a fuel-to-oil mixture in a 50:1 ratio. If Steve puts 2.5 gallons of fuel in the tank, how many fluid ounces of oil does he need to add?

If f (x) = 2x+4 and g (x) = 3x-7; then find (f+g) (4)

What is the lateral area of the rectangular prism? Assume the prism is resting on its base. L=10 W=5 H=4 A. 200 in2 B. 180 in2 C. 90 in2 D. 50 in2

5. In "The Pigman & Me," John announces that he is going to exact revenge on Paul. What does he mean by exact? (1 poin in a precise way sign into law take by force separate one object from another