750 - 300 = 450
She needs to save $450 more.
$450 / $12 per hour = 37.5 hours
She needs to babysit 37.5 hours.
Answer:
2x
3
Step-by-step explanation:
To multiply rational expressions, first factor all numerators and denominators and cancel any factors you can. Then multiply what you have left.
1) Remove parentheses.
2) Regroup terms.
