Find the sum of the three expressions and choose the correct answer.
-2u 3 v + 5uv - 1

7u 3 v - 2u 2 v 2

5u 2 v 2 - uv + 6

the answer choices
a. 5u3v + 3u2v2 + 4uv + 5

b. -5u3v - 3u2v2 + 4uv + 7

c. 5u3v - 3u2v2 + 4uv - 5

Two blends of tea are mixed to make a blend that will be sold at the fair. black tea sells for $2.20 per pound and orange pekoe tea sells for $3.00 per pound. how much of each should be used to obtain a 4lb blend selling for $2.50 per pound?

The amount spent on food and drink by 20 customers is shown below what is the modal amount spent ?

The krasnapolski is a top-of-the-line hotel in amsterdam, the netherlands. among their many services, they rent bicycles to guests. the bicycle checkout is open 24 hours per day 7 days per week and has 50 bicycles on hand. on average, 10 guests request a bicycle each day, arriving completely randomly at all times of the day during the spring and summer seasons. guests keep bicycles for four days on average, with a standard deviation of two days. how long does a guest on average have to wait for a bike? a. approximately 24 hours b. approximately 0.033 hours c. approximately 4 days d. approximately 47 minutes