Answer:
7x^2 -128x -19
Step-by-step explanation:
8+7=15
300/15=20
8 x 20 =160 Boys
7 x 20 = 140 girls
140 + 160 = 300
Hope this helps!
Well, first fin dyour best estimate mine is...600
Then after you got your best estimate divide that my 20
600/20 = 30
Hope this helped :D
The closest would be 7
7x7 is 49 and that is the closest
Answer:what am I doing
Step-by-step explanation: