Answer:
50 - 54
Step-by-step explanation:
0.75
12 more boys than girls
ratio of boys to girls = 7:5
thus 2/12 is difference between boys and girls = 12
total students = 12 ÷ 2/12 = 72
x(t) = –5 + 6t; y(t) = 3 – 9t
