What i don't understand i got 40 but 40 is not in the options : / can i get ? : /

Compare the cost of the bike trips from the two companies shown. for both the cost in a linear function of the number of days which statements is true

The wheels of a bicycle have a diameter of 70cm. how many meters will the bicycle travel if each wheel makes 50 revolutions

Write the summation to estimate the area under the curve y = 1 + x2 from x = -1 to x = 2 using 3 rectangles and right endpoints