If tashi scores an 85, 87, and 89 on his first three tests, what must he score on his fourth test so that the average of the four test scores is exactly 90?

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

Part of the population of 10,800 hawks at a national park are building a nest. A random sample of 72 hawks shows that 12 of them are building a nest. Estimate the number of hawks building a nest in the population.

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 ...