Johnny has 90, 84, and an 86 on his first 3 tests. what score would he need to make on the 4th test to bring his test average up to a 90

Jill earns 1.5 times her normal hourly rate for each hour she works after 40 hours in a week. She worked 52 hours this week and earned $638. What is her normal hourly rate?

The sum of two numbers is greater than either number?

What is - 9 to the-3/2 power with no decimals

Systems of equations word problem. "Flying with the wind a plane went 183 km/h. Flying into the same wind the plane only went 141 km/hr. Find the speed of the plane in still air and the speed of the wind.

ex weighed 80 pounds a year ago. Now he weighs 92 pounds. What is the percent increase in his weight?

What is 59.69 written in expanded form

Which expression is equivalent to 73 ⋅ 7-5?

What are the measures of all three angles of triangle ABC with side lengths 8,11, and 17?

NeNe tripled a cookie recipe for a party. The original recipe called for 5.25 cups of sugar. NeNe tripled the sugar amount and poured it into a mixing bowl. The mixing bowl got knocked over and 4.46 cups of sugar spilled.

What is the standard form equation of 4x+7¥=11