Answer:
Step-by-step explanation:
200% of x = 105% of 90
(200/100) * x = (105/100) * 90
2 * x = 1.05 * 90

x = 47.25
The mistake is the sign,
The sign must be switched
So therefore x > -5
Answer:
4.2 hours
Step-by-step explanation:
He spends 6 hours helping customers and 1.8 doing paperwork.
M-4=84.
The equation is correct because the maple tree is 4 feet shorter than the elm tree. M represent the maple tree, so you take away four to find the elm.
The height of the maple tree is 88 feet.