Answer:

Step-by-step explanation:
since a=lw, the area is (x^2-3x+7)(x+4)
1. distribute parentheses 
2. apply +(-a)=-a rule 
3. Simplify
Steps to simplify:





4. Add like terms 
5. Add like terms 
Answer:
Terminating decimals have a finite number of digits after the decimal point while Repeating decimals have one or more numbers or sequences of repeating numbers after the decimal point.
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Answer:
He made 5 cakes
Step-by-step explanation:
49 divided by 7 = 7
56 divided by 7 = 8
70 divided by 7 = 10
63 divided by 7 = 9
So for one cake you would need 7 g sugar, 8 g butter, 10 g flour, and 9 ml milk. So, 50 divided by 10 = 5 cakes
Answer:
Lucy needs to invest $55,194.16
Step-by-step explanation:
Answer: 2 hours 15 minutes
Step-by-step explanation:
3/4 of an hour times 3 will be 9/4; each fourth is 15 minutes. 9 times 15 is 135 minutes, which is 2 hours and 15 minutes