10a+35b=0; 21a-35b=217 ...associative property of addition
31a = 217 .............addition property of equality
a = 7 .....................division property of equality
2(7) +7b = 0 --------------substitution property of equality
14+7b = 0 -----------------mulplication property of equality
7b = -14 --------------subtraction property of equality
b = -2 ----------------simplify
I'm most likely wrong because I haven't learned this yet but I'm guessing .25 or 1/4
Answer:
a. 100n
Step-by-step explanation:
if n=1, 100(1)=100
if n=2, 100(2) = 200
and so on...
She has swapped the fixed fee and the rate, on both sides of the equation. The correct euation is:
Answer: C
Step-by-step explanation: The range of a function is all the outputs, or in this case all the values on the right side of the function. Therefore, we just look at what numbers are there and we find the range