With question in photo below, its about independent and dependent variables.

a)independent variables: 3,4,5,3,7,8 dependent variables: 27,36,45,54,63,72

b) y=9x

Step-by-step explanation:

Your independent variables are what is on your x- axis so in this case, it's the number of guests, Your dependent variables are on your y- axis so it's the meal preparation. Since for each guest there is a 9 min prep time (27/3=9 or 36/4=9 equals 9 and so on) your equation to compare them is y=9x

$20.01

step-by-step explanation:

the sale price is (1.00 - 0.77)($87), or 0.23($87), or $20.01.

he has now walked a total of what?

if i know what this is maybe i can

step-by-step explanation: