Find the cost of making 125 cylindrical tennis ball containers that have a diameter of 7cm and a height if 21cm, and the metal costs $4.50 per square metre ( metal base but open at the top)
hint- the answer is $28.14. i just need the working out ty

c > -10.55

step-by-step explanation:

answer: what are the following choices

y = 3x+4

step-by-step explanation:

to find the slope

slope = (y2-y1)/ (x2-x1)

    = (-8-4)/ (-4-0)

    = -12/-4

  = 3

using the slope intercept form of a line

y= mx+b

we know the slope is 3

we know the y intercept is 4 ( the point where it crosses the y axis or x=0)

y = 3x+4

yes

step-by-step explanation:

they have to be opposite and reciprocal of eachother.