HELPP PLZZZ AND HURRY PLZ

Scale factor of 2 is used to enlarge a figure as shown below the area of is 18 in.²

How much orange juice do you need to make 2 servings of lemony orange slush?

List x1, x2, x3, x4 where xi is the midpoint endpoint of the five equal intervals used to estimate the area under the curve of f(x) between x = 0 and x = 10.