Answer: 
Step-by-step explanation:
Reformatting the input :
Changes made to your input should not affect the solution:
(1): Dot was discarded near "7.".
<u>STEP 1: </u>
Simplify 
<u>The equation at the end of step 1:</u>

<u>Multiplying exponential expressions:</u>
2.1
multiplied by

Final result is 
Jonas has 8, Maura has 24, and Treton has 6 I think. Hope it helps :)
Step-by-step explanation:
Firstly, there's a typing error at (x=1)². I assume it is (x-1)². If my assumption is correct,then:
x²-2x+1-4x=x²-2x+1
x²-6x+1-x²+2x-1=0
-4x=0
x=0
Answer:
Cosy° = 
Step-by-step explanation:
From the picture attached,
By applying all trigonometric ratios in the given right triangle,
Siny° =
= 
tany° =
= 
Therefore, Cosy° = 
Cosy° = 
Therefore, Cosy° =
will be the answer.
Answer:
rate of change
Step-by-step explanation:
The rate of change (ROC) is the speed at which a variable changes over a specific period of time.