During a trivia bowl, contestants earned 1 point for each correct answer given and
-1 1/4 points for each incorrect answer
given. By the end of the contest, Mr. Salk
had given 21 correct answers and 19
incorrect answers. Expressed as a decimal
number, what was Mr. Salk's total score?

a) 15/7

step-by-step explanation:

94

step-by-step explanation:

average the numbers and use a variable to figure out the minimum to get a 90.

(79+94+91+92+x)/5=90

x = 94

this is the formula: v = the value of investment at the end of the time period

p = the principal amount (the initial amount invested)

r = the annual interest rate

n = the annual frequency of compounding (how many times a year interest is added)

t = the number of years the money is invested

^ means raise to the power of