Solve using inverse operations

1. 5x + 10 = 15

2. r/4 - 1 = 4

What is the union of the sets M = (1, 7, 10, 11, 15) and N = (5,15) ?

A restaurant bill before tax is $19.50. If the sales tax is 7.5% and a $18 tip is added, what is the total cost of the meal?

David is twice as old as Sara, and Jessica is three times as old as Sara. If their ages add up to 30, how old is David? x = Sara's age 2x = David's age 3x = Jessica's age

Find the 7th term of the geometric sequence 2,6,18

A flower bed is in the shape of a triangle with one side twice the length of the shorter side and the third side is 26 feet more than the length of the shortest side find the dimensions if they're perimeter is 174 feet

Mrs. vargas bakes a pie for her book club. 4/8 of pie is remaining. That night Mr. Vargas eats 1/4 of the whole pie. What fraction represents the amount of the pie remaining?

Jane was asked to find the factors of 8. Here is her work: 8 * 1 = 8 8 * 2 = 16 8 * 3 = 24 Factors of 8: 8, 16, 24

What is 32 x negative 4

Terry checks the temperature at dawn at and at dusk everyday for a week for a science project how many observations does he make

A square is a type of what shape?