Hope this helps you :), this qn is tedious so i might make careless mistakes. Best to check with your licensed tutor or your school teacher :)
Answer:
By adding equation we get:
2x-y=3
x +y=9
______
3x=12
x=6
Step-by-step explanation:
cut the positive and negative (y)
I think 306? Not completely sure! Hope this helps!!
Answer:
14π yards^2, or 43.98^2 yards rounded to 2dp
Step-by-step explanation:
circumference = diameter x π
Answer:
$125.25
Step-by-step explanation:
8.75*h+11.25*e
h is hours regular pay and e is extra pay for overtime. Since its an extra $2.50 for overtime, add that to the regular pay. Put in the hours:

Simplify by multiplying 8.75 by 8

Simplify by multiplying 11.25 by 5

Add

Since it says how much did each earn, as in individually, leave it as it is (unless regular pay was $2.18 an hour, which would be a rip-off). I'm pretty sure including the number of employees was meant to throw you off.