Answer:
7/10 hours
Step-by-step explanation:
her first assignment took 1/2 hour
her second assignment took 1/5 hour
so in total she took 1/2 + 1/5
we need to find a common denominator
the lcm(2,5)=10
so multiply 1/2 by 5/5 to obtain 5/10
multiply 1/5 by 2/2 to obtain 2/10
5/10 + 2/10 = 7/10
Answer: 
Step-by-step explanation:
You need to use the following formula:

Where "r" is the radius and
is is the central angle of the arc in radians.
Assuming that that the angle
is the central angle of the arc, and knowing that the radius is 7 centimeters, you can substitute values into the formula.
Therefore, you get:

Answer:
3*x=15
Step-by-step explanation:
i think-
Answer:
14
Step-by-step explanation:
Given that Steve invests in a circus production. The cost includes an overhead of $84,000, plus production costs of $2000 per performance. A sold-out performance brings in $8000.
Sales per performance =8000
Production cost per performance =2000
Contribution per performance = 
Overhead costs = 84000
Break even units = overhead cost/contribution per performance
= 
14 performances should be done to break even
Answer:
a.$167.03
Step-by-step explanation: