Answer:
B
x is the price of the sweater so 3x and add $15 for the skirt which would add up to $90
Answer:
2/3, 12/18 and 18/27
Step-by-step explanation:
The line goes 3 right for every 1 down, so the gradient is -1/3
The y-intercept is +4, so the equation is actually y=-1/3x+4, so Chris is wrong.