the scientist's collection that has granite that weighs 74 26/36 lbs, marble that weighs 63 16/34 lbs, and quartz that weighs 81 9/40 lbs. Approximately each quantity to the nearest 1/4 how much more does the quartz weigh than the granite? a 6 lbs b 6 3/4 lbs c 11 1/4 lbs d 6 1/2 lbs

(D)6 1/2 lbs

Step-by-step explanation:

Difference = 81.25 - 74.75

=6.5 lbs

The correct option is D.

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.