45 + 7.80t ≤ 99.60
7.80t ≤ 54.60
t ≤ 7
They can rent a meeting room for no more than 7 hours.
Answer: 3 shirts
Step-by-step explanation:
so they are 20 a piece
5+45=50
they need to raise $50
1= 20
2=40
3=60
Answer:x=90 °
Step-by-step explanation:
In any circle the exterior angle formed is half of the major arc - minor arc .
Angle formed by tangents or secants = 
The sum of measure of arcs inany circle is 360°.
Minor arc is given as x°.So Major arc = 360-x.
Substituting the given values in the formula :


x=180-x
Adding x both sides we have:
2x=180.
Dividing both sides by 2.x= 90.
Answer:
x<=10
Step-by-step explanation:
2x<= 32-12
2x<= 20
x<= 20/2
x<= 10
Answer:5
Step-by-step explanation: 18-4K = -2
-18 -18
<u> -4K</u> =<u> -20</u>
-4 -4
K=5