Ascientist removed a sample of 39.1 grams of a chemical from a container. the sample was 5 3/4 grams less than 3/10 of the total mass of the chemical in the container. what was the total mass, in grams, of the chemical in the container before the scientist removed the sample of 39.1 grams?

55

step-by-step explanation:

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.