10 points so !
1. evaluate 6r + 7 for r = 1.2
a. 0.2
b. 7.2
c. 13
d. 14.2
2. write an algebraic expression for " julie runs three miles less than twice the number of miles, n, that hannah runs."
a. 2 n -3
b. 3n -2
c. 2n + 3
d. 3n + 2
3. solve 5s + 40 = 55 using number sense.
a. 3
b. 15
c. 19
d. 95
4. translate "the sum of eight and the product of two and y is twenty-four" into an equation.
a. 8y - 2 = 24
b. 8y + 2 = 24
c. 8 + 2y = 24
d. 8 - 2y=24
give me the correct answers !

1 ) substitute the r in the equation for 1.2. 6 (1.2)+7= ? multiply then add for. answer. 7.2+7= 14.2 2) since the miles Hanna runs is unknown it makes it n. Julie runs 3 miles less than twice hunny runs. Therefore it should be 2n-3. 3) you would subtract the regular number from both sides first so 55-40= 15.. the equation would then be 5s=15 then you would divide both sides by 5...making s=3. 4) you would add the sum of 8 to the product of 2 and y to get 24 so it should be 8+2y=24