If a = - 3, find the value of

a) 2a

b) a^2

c) 3a^2

The area is 28 square cm, and 4 width

How do you write 2.22 in expanded form

Mouse took 7 seconds to run 350 centimeters

A local hamburger shop sold a combined total of 38 hamburgers and cheeseburgers on Monday. There were 62 fewer cheeseburgers sold than hamburgers. How many hamburgers were sold on Monday?

Luke borrowed $15,000 to pay his college tuition. After he graduates, he will repay the loan along with simple interest. After 2 years, Luke will owe a total of $17,250. What is the simple interest rate on Luke's loan? A 5.75% B 6.52% C 7.25% D 7.5%

Edith works for x amount of hrs that pays $4 she also has accepted another job that pays $8 an hr working y amount of hrs she can only work 15 hrs a week. Edith wants to earn at least 80 a week. Working both jobs

Jacob counts 37 ants on the sidewalk and 11 ants on the grass. how many ants does Joes count?

A number decreased by fifteen is less than two.

What is the value of x in the equation 1/5x-2/3y=30, when y = 15?

What are two like fractions with a difference of 1/3