Rewrite each of the following as a single, positive exponent.

a) 2-7

b) 4-9

c) 3-23

The city of Boston has about 614594 residents to the nearest ten thousand what is the population of Boston

Jerry walked a dog from 6:40 a. m to 7:30 a. m one day. if he was paid at the rate of $ 6 per hour, how many did he earn that day

N 2.5 hours a hurricane traveled 312.5 miles. If the average rate at which the hurricane is moving increases by 8%, how many miles will the hurricane travel in the next 1.5 hours? A. 223 B. 202.5 C. 135 D. 101.5

If Josh has 5 dragons and bought 6 more how many would he have?

A soccer team is having a car wash. The team spent $55 on supplies. They earned $270, including tips. The team's profit is the amount the team made after paying for supplies. Use a sum of integers to find the team's profit

if a hospital patient is given 50 milligrams of medicine which leaves the bloodstream at 10% per hour, how many milligram of medicine will remain in the system after 6 hours?

What is 5,000 rounded to

Is the following relation a function? (6,2) (-2,2) (4,1) (-1,1)

Solve the inequality. 1/3a+2<-2

The larger two numbers is 12 more than the smaller number. If the sun of the two numbers is 74, find the two numbers.