If a=3 what would the answer to this problem be?

2a+5

a=3

Each snack pack holds 20 crackers how many crackers in all are there in 4 snack packs

A pair of dice are thrown. what is the expected value of the sum? se of the sum?

A father is four times as old as his daughter. In 18 years he will be two times as old as she. How old is the daughter now?

Find 3 consecutive integers whose sum is 105.

3. Suppose a male and a female of a certain species of animal were taken to a deserted island. The population of this species quadruples (multiplies by 4) every year.

What is the distance between (-2,4) and (5,4) on a coordinate grid

2) Jennifer is considering taking out a loan with a principal of $16,200 from one of two banks. Bank F charges an interest rate of 5.7%, compounded monthly, and requires that the loan be paid off in eight years. Bank G charges an interest rate of 6.

Audrey owns 25 books, but only 18 books fit on the shelf. How many books did not make it on the shelf? A) 5 B) 6 C) 7 D) 8 E) 9

A train travels 15 miles per hour faster than a car. If the train covers 100 miles in the same time the car covers 75 miles, what is the speed of each of them?

What does inverse sine (0) equal