Astudent has taken three tests and earned an 85, 80, and 75. she will take one more test comprised of 20 questions. each question is worth 5 points. the student would like to have a test average of at least 87. what grades on the fourth test will i've her this average?

The height of a triangle is 4 in. greater than twice its base. the area of the triangle is no more than 168 in.^2. which inequalitycan be used to find the possible lengths, x, of the base of the triangle?

15 point ! ~ see if you know the answer to both you!

Marco has $38.43 dollars in his checking account. his checking account is linked to his amazon music account so he can buy music. the songs he purchases cost $1.29. part 1: write an expression to describe the amount of money in his checking account in relationship to the number of songs he purchases. part 2: describe what the variable represents in this situation.