Explain how to get the product of 2 times the square root of 5 and 4 times the square root of 10

Write the statement below as a bicondtional. "When the sum of the digits of an integer is divisible by 9, the integer is divisible by 9.

How do I solve this problem b+2/b-1=4/5

0.5% of what number is 1?

Standard form y=1/3x + 3

What is 842.121 rounded to the nearest tenth

What is the probability that the second person has a birthday different from the first person?

What is the least whole number that is a solution of 2r-4.4>8.6?

John has a roll containing 24 2/3 feet of wrapping paper. He wants to divide it into 11 pieces. First, though, he must cut off 5/6 foot because it was torn. How long will each piece be?

Bruce has a pet worm that fell into a well the well is 26 feet deep each day the worm climbs up 8 feet, each night, it slides back down 2 feet

Which expression could be used to determine the product of - 4 and 3 and one-fourth? (negative 4) (3) times (negative 4) (one-fourth) (negative 4) (3) + (negative 4) (one-fourth) (3) (negative 4) times (3) (one-fourth) (3) (negative 4) + (3)