Billy currently has $50 in his vacation fund. He earns $35 a week mowing lawns and spends $14 out of the $35 for entertainment. He puts the rest in his vacation fund. Which function can be used to determine a, the amount of money in Billy's vacation fund, in dollars, at the end of w weeks?

Step-by-step explanation:

Let

y ----> the amount of money

x ---> the number of weeks

we know that

The linear equation in slope intercept form is equal to

where

m is the slope

b is the y-intercept or initial value

In this problem we have

The slope is equal to

The y-intercept is equal to

substitute

therefore

For x=w weeks

The function is

2. angles qrt and qst both measures 156 degrees.

step-by-step explanation:  

we have been given a diagram of a circle and we are told that measure of arc qvt is 156 degrees.  

we can see from our given diagram that angle qrt and angle qst subtends to arc qvt.

since we know that angles subtended by the same arc at the circumference are always equal.

by angle subtended by same arc theorem, measure of angle qrt and angle qst will be equal to the measure of arc qvt.

therefore, angles qrt and qst both measures 156 degrees and 2nd statement is the correct choice.