Answer:
Step-by-step explanation:
The cost for 78 students is $279.
If s is the number of students and you have 78 students attending, do 3*78 first. You should get 234, then once you get that total, don't forget to add 45 dollars onto it.
Answer:
i believe its C
Step-by-step explanation:
Answer:
Step-by-step explanation:
if we have a right triangle,
one angle=90
180-90=90
let x be one angle, and y another angle
the other is 2x+30
x+2x+30=90
3x=60
x=20
y=70
