Answer:
5 pounds
Step-by-step explanation:
Given that:
Amount of gift card = $80
Cost of coffee per pound = $8.24
Amount left in the card = $38.80
To find:
Number of pounds of coffee bought = ?
Solution:
Let the number of pounds of the coffee bought =
pounds
Cost of 1 pound = $8.24
Cost of
pounds = $8.24 
Writing the equation as per question statement:

Therefore, 5 pounds of coffee was bought.
Answer:
- 1,7
Step-by-step explanation:
but not sure on this if wrong so sorry
Answer:
B
Step-by-step explanation:
a^2 + b^2 = C^2
solve for b
b^2 = c^2 - a^2
square root on both sides of the equation and you get option b as your answer
B. is reasonable because 9.2×4.8 = 44.16
Answer:
steps below
Step-by-step explanation:
2ⁿ⁺¹ +2ⁿ⁻¹ = 2ⁿ⁻¹ (2² + 1) = 5*2ⁿ⁻¹