1) Perfect squares:
a²+14a+49 = (a+7)²
a²+26a+169 =(a+13)²
2) Differences of squares
a²-36 = (a-6)(a+6)
w²-121 = (w-11)(ww+11)
Answer:
Yes! C=10+35h is correct!
Step-by-step explanation:
Yes, equation is correct!
$10 is fixed one time fee.$35 is hourly pay.
So, if she needs tutor for 'h' hours, the variable cost is $35h
So, total cost C =10+35h
Answer:
a) $3250
b) 31%
Step-by-step explanation:
a) 910 + 2340 = $3250
b) 18 + 13% = 31%