Real answers, no free points or get deleted! 25 pts! I will give brainliest

first one

    83.68

second one

    156.8

third one

    $2.52

first one

    86

second one

    25%

third one

    $70

Step-by-step explanation:

to find the percent of something move the decimal to the left twice then multiply

step-by-step explanation:

let

we know that

the y-intercept is the y-coordinate of the point when the value of x is equal to zero

so

the y-coordinate of the point a is the y-intercept

the answer part a) is

the value of y-intercept is

part b) find the slope m

we know that

the value of the slope is equal to

substitute the values

therefore

the answer part b) is

the value of the slope is equal to

the general answer is

the slope is

the value of y-intercept is