Answer questions 1 through 3. and show your work . i will mark you brainliest.

(1) snoopy loves to do pushups. he does 273 pushups each week for 91 weeks. how many push-ups does he do? show work .

(2)if jaquan reads 24 pages each day. how many days will it take him to read 696 pages? show your work .

(3)mr. cavanaugh has 28 boxes of pencils. each box has 12 pencils in it. after having a group of students sharpens the pencils, he wants to sort them into bags with 25 pencils in each. how many bags will be needed to hold all of the pencils? show work .

Ariana starts with 100 milligrams of a radioactive substance. the amount of the substance decreases by 20% each week for a number of weeks, w. the expression 100(1−0.2)w finds the amount of radioactive substance remaining after w weeks. which statement about this expression is true? a) it is the difference between the initial amount and the percent decrease. b) it is the difference between the initial amount and the decay factor after w weeks. c) it is the initial amount raised to the decay factor after w weeks. d) it is the product of the initial amount and the decay factor after w weeks.