Answer:
5 groups. 9 girls and 12 boys.
Step-by-step explanation:
45/5=9 girls per group
60/5=12 boys per group
To check:
9x5=45 total girls
12x5=60 total of boys
x = - 3
note that y = f(x)
locate y = 3 on the y- axis, go horizontally across to meet f(x) at (- 3, 3 ) , then
x = - 3 when f(x) = 3
148 minutes = 2h 28 min
48min+(25+75mins)=48+100=148
it’s just 2x^2
it’s not factorable