Pls answer the question with all step by step explaination (SHOW WORK!) Ty will give brainliest

Liz is shipping a package to her friend.the maximum weight of a medium flat-rate box is 20 pounds,including the box which weighs 6 ounces.write and solve an inequality to describe the possible weight ,w, of the contents that liz will ship to her friend if she must use a medium flat-rate box.

Julie buys 2kg of apples and 7kg of pears ? 12.70. the pears cost ? 1.30 per kilogram what is the price per kilogram of the apples? show your working out

Atown has a population of 12000 and grows at 3.5% every year. what will be the population after 7 years, to the nearest whole number?