Answer:
$3185
Step-by-step explanation:
Multiply the number of grade 6 students by the money needed ($3.50) and you get 318x3.50=1113
Multiply the number of grade 7 students by the money needed ($3.50) and you get 286x3.50=1001
Multiply the number of grade 8 students by the money needed ($3.50) and you get 306x3.50=1071
Add all the total amounts together and you get $3185
<h2><em>PEMDAS</em></h2><h2><em>Parenthesis, Exponents, Multiplication, Division, Addition, Subtraction. Use this for the Order in which you do the work,</em></h2><h2><em>3 x 2 = 6. 6 / 3 = 2. 2 is your Answer. You could have done that with a calculator.</em></h2>
I think it’s the one in the top right? cuz the negative would cancel out the 3x then u would have the 7x • 7x aka 7x to the second power