How do I add exponats with the same base?

Ex. Is there a short to x^a+x^b

You sold two different types of wrapping paper

You purchased a new computer for $485.00 and the sale tax is 7.5%. Find the Sale Tax that would be added to the subtotal

A toy company produces rubber balls that have a radius of 1.7 cm. A sphere has a radius of 1.7 centimeters. What is the volume of one rubber ball? Round to the nearest hundredth of a centimeter.

Which function below represents the arithmetic sequence 3, 7, 11, 15 ... ?. f (n) = 4 + 3 (n - 1). f (n) = 4 + 3n. f (n) = 3 + 4n. f (n) = 3 + 4 (n - 1)

An equivalent expression by combining like terms for 9c-6+c

Ahmed is taking orders for lunch. a slice of pizza is 2.5 a chicken sandwich is 3.5 he collects 21.50 for a group of 7 people. how many people ordered a chicken sandwich?

Determine whether each relation is a function. Explain. y=1/2x-6

A recipe requires 2/3 of a cup of yogurt. Rachel has 1/2 of a cup of yogurt from a snack pack. How much of the recipe can Rachel make?

A pole 24 feet high has a shadow eight feet long. A nearby pole is 72 feet tall. How long is it's shadow?

Where did Jack Frost catch a cold?