Write the following proportion using colons. 7 is to 21 as 3 is to 9.

a. 7:21 = 3:9

b. 7:3 = 21:9

c. 21:7 = 3:9

d. 7:21 = 9:3

He daily milk production of guernsey cows is approximately normally distributed with a mean of 35 kg/day and a standard deviation of 6 kg/day.

Why is the metric system called a decimal system of measurement

Which fraction has the greatest value? 5/6 1/6 - 1/6 - 5/6

Round 2.093 to the nearest tenth

One dollar and eighty-seven cents. That was all. And sixty cents of it was in pennies." Model the scenario with an equation. Let q be the number of quarters, d be the number of dimes, and n be the number of nickels.

An employee gets paid $1,035 each week. How much money will the employee get paid for working 6 weeks? How can you use estimation to check the reasonableness of your answer?

a man divided $9000 among his wife son and daughter. the wife rectwice as much as the daughter and the son received $1000 more than the daughter. how much did each receive.

What is 100/112 in a percentage of s 100%

Every Wednesday Carla runs 2.5 miles how many feet did she run

Justin wants to plant grass in his backyard. His backyard is in the shape of a rectangle. Its length is 32 feet and its width is 21 feet. Suppose each pack of seed covers 12 square feet. How many packs of seed will he need to cover the backyard?