Answer:
A. $66,000
Step-by-step explanation:
The relationship between sales data (in $1,000s) and advertising data (in $100s) is:

If if advertising is $3,000, then x =$30, and the point estimate for sales (in thousands of dollars) is:

Converting it to dollars, the point estimate for sales is:

Use the slope-intercept form to find the slope and y-intercept.
Slope: 22
Y-Intercept: 3
To find the inverse, interchange the variables and solve for y.
f−1(x)=−3/2+x/2
Answer:
48 fl oz.
Step-by-step explanation:
12 fl oz per minute for 4 minutes
12*4= 48 so it is losing 48 fl oz in 8 minutes
Equation: 4x-10=66
Move -10 to the other side by adding 10 to both sides. to get 4x=76.
Multiply both sides by 4 and get x=19, so she sold 19 cookies