To get an a in a course, you need an average of 90% or better on four tests that are worth 100 points each. your scores on the first three tests were 87, 92, 84. what must you score on the fourth test to get an a for the course?

Aboat costs 19200 and decreases in value by 12% per year. how much will it cost in 5 years

Which equation results from adding the equations in this system? x+6y=9 and -x+2y=-15

If you invest 1,500 today in a bank that gives you a 5 percent annual interest rate, which of these items can you buy in two years? a. electronics worth $1,650 b. fitness equipment worth $1,700 c. a holiday package worth $2,000