(2a+5)(2a-5) simplify​

If a baby uses 15 diapers in 2 days how many diapers will the baby use in a year

Somone me i want to know what 18 hours out of 24 hours in a fraction

Use the frequency distribution, which shows the number of american voters (in millions) according to age, to find the probability that a voter chosen at random is in the 18 to 20 years old age range. ages frequency 18 to 20 5.9 21 to 24 7.7 25 to 34 20.4 35 to 44 25.1 45 to 64 54.4 65 and over 27.7 the probability that a voter chosen at random is in the 18 to 20 years old age range is nothing. (round to three decimal places as needed.)