Which function has an inverse that is a function?

b (x) = x2 + 3

d (x) = - 9

m (x) = - 7x

p (x) = 1x1

The area of a rectangular park is 82,520 square feet. the length of the park is 350 feet. which equation can u use to find w, the width of the garden in feet? 350 x w = 82,520 82,520-w=350 2w+2 (350) = 82,520 82,520 x 350=w

Johnny is older than Jeff. The Difference of their age is 23. And the sum of their ages is 49. Find the ages of each

4x+6-3x=8-2x The answer comes up wrong if I put. 6 or. 66666 or. 6666667

A study found that the average person blinks about 1,110 times per hour. At that rate, how many times would someone blink eight minutes?

Standard form of 5x+15y=75

Olivia has $220 to buy presents for her 3 sisters and 2 nephews. She wants to spend $10 more on each sister than she spends on each nephew.

Katherine is working two summer jobs, making $16 per hour lifeguarding and making $6 per hour walking dogs. In a given week, she can work a maximum of 15 total hours and must earn at least $160.

What is 0.002 1/10 of

Mr. Otsuki has 25 bills worth $300. He has $5, $10, and $20 bills. How many of each type of bill could he have if he has exactly ten $20 bills and at least nine $5 ...

Frank has a daily run, he needs to carry more water. His current water bottle holds 16 ounces. His new water bottle holds 25% more water than his current bottle. What is the compacity of Frank's new water bottle?