Why are parallel and perpendicular lines important for construction and architectural design and engineering? Put as many examples as you can
find and explain how are they useful
ASAP PLS!

The class wants to raise a total of $750.if they receive a profit of $1.25 from each candybar sold, how many bars must they sell to reachtheir goal

The box plot shows the number of raisins found in sample boxes from brand c and from brand d. each box weighs the same. what could you infer by comparing the range of the data for each brand? a) a box of raisins from either brand has about 28 raisins. b) the number of raisins in boxes from brand c varies more than boxes from brand d. c) the number of raisins in boxes from brand d varies more than boxes from brand c. d) the number of raisins in boxes from either brand varies about the same.

If the sales price of a dvd is $20 and the markup is 34%, what is the cost of the dvd?