Whats 2 plus 7 plus 3

Afarm that has 4 x 10^2 acres has 1.2 x 10^5 cattle. what is the average number of cattle per acre? write the answer in scientific notation. answere asap

Ingredient c: 1/4 cup for 2/3 serving or ingredient d: 1/3 cup for 3/4 serving which unit rate is smaller

Parallelogram efgh is a rectangle. he = 6, and fe = 8. find ge: and find fj: