a hiker is walking down a mountain. she walked 5,978 feet in 17 minutes. in that time, she descended 1,024 feet from the top of the mountain. she then walked 3,972 feet in 7 minutes. in that time, she descended 500 more feet. express the average rate of change in altitude of the hiker from her starting point to her ending point as a unit rate.

so a parallelogram is just like a square base times height. multiply 40 and 39 to get 1560 inches.

a triangle is base times height divided by two. so multiply 7.9 and 5 and then divide it by 2 to get 19.75inches.

the kite can be split into two separate triangles and added together to get the total area. 30 x 4 /2 which equals 60. make sure to double it for the two triangles making 120.