Step-by-step explanation:
9. 27+7x
10.52x+8
forgive me if im wrong but I'm sure it's that
Answer:
4y^2-6y+24
Step-by-step explanation:
add like-terms with polynomials (Khan Academy) had really good videos on specific examples
Answer:
The crossover point for Time 
Step-by-step explanation:
From the question we are told that
The total rooms rented for the year is 
Time's fixed cost is r = $61,000
Time's variable cost is
$12.5 per room
Duffy's Maid Service fixed cost is
$25,000
Duffy's Maid Service variable cost is
$18.00 per room
The cross over point for Time is mathematically represented as

substituting values


For a * = 2bc
for b * = 5ab