Not knowing what you want, I'll arbitrarily choose to focus on the word problem:
Find the total cost of the blazers and pants, including the tax.
2 blazers @ $49.95 each comes to $99.90.
3 pair pants @ $17.50 each comes to $52.50.
Add these two products together: $99.90 + $52.50 = $152.40
Now mult. this result by 0.055 to find the sales tax: 0.055($152.400) =
$8.38
Finally, add together the purchase cost total and the sales tax:
$152.40 = $8.38 = $160.78 (answer)
You actually posted 3 problems, but not the instructions for the last two of them. That's why I focused on the word problem alone.
The answer to this question is A
9514 1404 393
Answer:
r = ±√47
Step-by-step explanation:
-7r^2 = -329 . . . . given
r^2 = 47 . . . . . divide both sides by -7 (multiplication property of equality)
r = ±√47 . . . . square root both sides (square root property of equality)
-3 1/2 because if you do 2.8 times 1 and 1/4 you get 3.5 and 3.5 as a fraction is 3 1/2
Multiply 56 / 1 and 4 / 5. This will result in 224 / 5. You can divide it to result in 44.8, or keep it the fraction because it cannot be simplified any further.