What is the grade (in percent) of a road that rises 40 feet over a 16 feet horizontal distance? (round to one decimal place if necessary)

250

Step-by-step explanation:

Grade = rise / run

rise = 40 feet

run(horizontal) = 16 feet

Therefore

Grade = rise / run

Grade = 40/16 × 100

Grade = 2.5 × 100

Grade= 250

i did it myself and i got 4.2 (b) hope its right

step-by-step explanation:

let x be the money she spent so that she can earn the free t-shirt.

since, she already spent $112.49

⇒

also, as per the statement: jennifer must spend $250 or more in order to qualify for a free t-shirt at the store.

then,

we have an inequality i.,e

subtract 112.49 from both sides we get;

therefore, $137. 51 more money does jennifer need to spend so that she can earn the free t-shirt