Which two consecutive whole numbers is the value of square root of 21 between? ( put step by step how you got the answer)
4 and 5
10 and 11
21 and 22
42 and 43

What is the celsius temperature that is equal to 94 degrees fahrenheit using the formula f=9/5 c+32

If i have a 24 in loaf of bread and i cut it into two pieces one 9 in how long was the other

The jewelry store is having a sale. necklaces that were regularly priced at $23.50 are on sale for $18.80. what is the percentage of decrease in the price of necklaces?