Question

Mario's heart beats 72 times per minute
A) calculate how many times it beats in one year ( one year =365days)
B) write your answer in standard form correct to 2 significant figure

Answer 1

Day = 1440 minutes
365 days = 1440 minutes * 365

Answer 2

then multiply it like this 1440 minutes * 365 * 72

Answer 3

It will be =37843200 In standard form correct to 2 significant figure