Kira needs 3,000 milligrams for zinc for a science experiment. Which expression can be used to determine how many grams of zinc she needs? A. 1,000 ÷ 3,000

B. 1,000 × 3,000

C. 3,000 ÷ 1,000

D. 3,000 × 100​

At the "no mutants allowed" country farm, every sheep has 4 legs, every chicken has two legs, and all animals have only 1 head. asked to count how many sheep and chicken are in the fields, a farm boy reports back that there are 140 feet and 50 heads. how many sheep and chicken are there? there are sheep and chicken at the farm.

In a rectangle klmn, km = 6x + 16 and ln = 49. find the value of x

The blue segment below is a diameter of o. what is the length of the radius of the circle?