I cannot figure out how to solve this

(2x^9y^7z) (2x^4z^3)

George is buying watermelons and pineapples to make fruit salad. He buys a apples at $4.49 each and c cucumbers at $5 each. What does the expression 4.49a + 5c represent?

There are 700 people in line for a popular amusement-park ride when the ride begins operation in the morning

After 12 days you have 800 lbs of plutonium left to fuel your nuclear reactor. After 30 days you have 755 lbs. Find the equation of the line (in slope-intercept form). How much fuel will you have after 120 days?

Solve the equation - 2 (m - 30) = - 6m A-15 B-13 C-8 D8

What is the answer to 10/12 1/2?

What number is 70% of 45

Ava's backyard is rectangular with an area of 3/5 miles. If the length of the backyard is 7/8 miles, what is the width

A local grocery store is advertising a discount of 20% off a large bag of peaches which he normally cost $5

For a certain bathtub, the hot water faucet can fill the tub in 13 minutes. The cold water faucet can fill the tub in 12 minutes. If both faucets are used together, how long will it take to fill the tub?

Which is greater 3/4 or 11/16? How can you be sure