Kira needs 3,000 milligrams of 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

16. you're planning to buy a boat, a motor, and some miscellaneous boating equipment. the boat costs $325, the motor costs $225, and the equipment costs $79. if you've saved $438 toward these purchases, how much more do you need to save? a. $181 b. $281 c. $291 d. $191

One file clerk can file 10 folders per minute. a second file clerk can file 11 folders per minute. how many minutes would the two clerks together take to file 672 folders?

Asmall book publisher knows that 26 books weigh 41 lbs. how much do 40 books weigh?