Set up a proportion. X is the number you're looking for:

This relates 3 to x as 4 percent relates to 100. Simplify the 4 and the 100 to 1 and 25, cross multiply, and solve for x:

3 is 4% of 75.
Answer:
Part A) 45-21 ≥ 4x
Part C) She could buy up to 8 notebooks
Step-by-step explanation:
She already spent $21 so you would need to subtract that from the total budget. The sign would be greater than or equal to since that's the max amount.
45-21 ≥ 34
34≥4x
Divide both sides by 4 to cancel it out. You would get 8.5 but since you can't buy half a notebook it would be 8.
Answer:
same im dum 2 :((((
Step-by-step explanation:
Answer:
1800 screws per hour
Step-by-step explanation: