You find the surface area by finding the area of both trapezoids, then adding the area of the rectangles.
You find the volume by adding the base area, length of the base, dividing it by 2, multiplying it by the base height, and multiplying it by the base length. The formula is (a + b)/2 x h x l
26 is the answer to 40% of 65
200 x 5 = 1000
1210 x 3 = 3630
3630 + 1000 = 4630
She bought 5 coach tickets and 3 first class.
You can use a proportion.
4 hours is to 82 miles as 14 hours is to x miles
4/82 = 14/x
Cross multiply to get
4x = 14 * 82
4x = 1148
x = 287
287 miles
