Answer:
5
Step-by-step explanation:
take your price and subtract the monthly price
115-40=75
now you have the price of all your extra devices summed up
75÷15=5 extra devices
9+9=18 is the cost per student. multiply that by the total students of 24 and you get 432
Answer:
A.
Step-by-step explanation:
81 - 49y^2 = (9 - 7y)(9 + 7y)
FOIL the equation.
(9 - 7y)(9 + 7y)
81 + 63y - 63y - 49y^2
81 - 49y^2
2099.5 ft
Find the angle using COS
500%650 then press 2nd function COS
39.72 degrees
Add up the measurement on the one side which comes to 1615 then divide by the COSINE of 39.72
2099.5 ft