Solve a + b = 90 for b

Shauna brought two similar blocks of ice to the family picnic, the larger block has a surface area of 6000cm squared, the smallest dimensions that are 3/4 as long. What is the surface area of the smaller block of ice

A component in a music system has a life expectancy of 2,400 hours with a standard deviation of 300 hours. If an average person listens to music for 1,000 hours in a year, the probability that the component lasts for more than 3 years is

Which number is a factor of 24 but not a multiple of 6

What is a percent of increase

Find the degree 3 taylor polynomial t3 (x) of function f (x) = (7x+2) 3/2 at a=2. t3 (x) =

Multiply and simplify: 10x (9x^2 + 6x + 7)

B ∩ U A = U (B ∩ A).

Kylee bought a pack of 12 cookies. one-third if the cookies are peanut butter. How many of the cookies in the pack are peanut butter?

How do you know the opposite of a nonzero integer?

The mileages of cars in a fleet of cars are normally distributed with a mean mileage of 52,000 miles and a standard deviation of 2,000 miles. What is the probability of randomly selecting a car with a mileage less than 52,000 miles?