Astudent knits scarfs and sells them at craft shows. the yarn to make each scarf costs $4. the scarves sell for $15 each. if the booths at the craft show cost $160 and they must buy a pair of new knitting needles that cost $16, how many scarves must the student sell to break even? what is the break-even point

The solution is: 

$160 for booth + $16 needles = $176 as capital

$15 price to sell each scarf - $4 cost of the yarn to make the scarf = $11 as profit

$176 / $11 = 16

The students must sell 16 pieces of scarves to get the breakeven point of $176 for the capital

in 1995, potato plants were taken into space aboard the space shuttle columbia.

step-by-step explanation:

to find the perimeter, you add up all the lengths of the sides. in this case you would have to add up 18+22+40+80 which equals 160.