John needs an average of 80 in English to make his parents happy. He now has an average of 78.5 based on four grades of 73, 84, 79, and 78. What grade does he need to get on his last
test to bring his average up to 80 ?

For what value of (y) is 3^3/3^y =1/9

Worth 100 points need the answers asap first row -x^2 2x^2 (x/2)^2 x^2 x is less than 2 x is greater than 2 x is less than or equal to 2 x is greater than or equal to 2 second row -5 -5/2 4 5 •2 is less than x& x is less than 4 •2 is less than or equal to x & x is less than or equal to 4 •2 is less than or equal to x& x is less than 4 •2 is less than x& x is less than or equal to 4

Solve the equation: x - 9 = -6 + 5 a. 21 b. 7 c. 14 d. 2