Answer:
2.401 * 10^3
Step-by-step explanation:
put -7 to the fourth power and then use scientific notation rules
Answer:
1.) $1.07
2.) $2.25
3.) $14.20
Step-by-step explanation:
1.) Toonie = 2 CAD
CAD = USD $1.57
$1.57 - $0.50 = $1.07 (USD)
2.) $2.75 - $5 = $2.25 (USD)
3.) $20 x 4 = 80
$80 - $65.80 = $14.20 (USD)
Hope this helped!
Answer:

Step-by-step explanation:
To solve this operation we need to find the common multiple of both denominators and solve for a.

Thus, the solution is 7(a -1) / (a+2)(a-5)
Answer:
10.15
Step-by-step explanation:
3.97÷56=.07
.07*145=10.15
The applicable relation is
... selling price = cost + markup
You have not said what the base is for the markup percentage. If markup is 75% of the cost, then we have
... markup = 0.75×cost
... cost = markup/0.75 = 3237.50/0.75 = 4316.67
Then the selling price is
... selling price = $4316.67 +$3237.50 = $7,554.17
_____
If the markup is 75% of the selling price, then we have
... markup = 0.75×selling price
... selling price = markup/0.75 = $3237.50/0.75 = $4,316.67