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A) 15 cm B) 1292 cm^2

Step-by-step explanation:

A) height can be used by using Pythagoras theorem

Height^2+base^2=slant^2

height^2+8^2=17^2

height=15 cm

B) The amount of cardboard used can be found by calculating the area

Area=2*(area of triangle) + 3*(area of rectangles)

17*16+3*(20*17)=1292 cm^2

a- 15 b- 1292^cm this is the answer

step-by-step explanation:

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b. 1.25 hr

step-by-step explanation:

if you have a constant speed of 60 mph, then you have a ratio between 60 mi. to 1 hr. dividing both sides by 60 we get the ratio

1 mi. to

then mult. both sides by 75 we get the ratio

75 mi. to

simplifying we get

75 mi. to

or 1.25 hr.