Jean has $20 and is going shopping to buy 3 scarves and as many pairs of earrings as possible. how many pairs of earrings can she buy if scarves cost $2.55 each and earrings cost $2.99 a pair?

Iam trying to solve a linear equation for the shoe size of someone 84" tall taking into consideration example 1 is 69" tall with a shoe size of 9 and example 2 is 72 inches tall with a shoe size of 11. i understand that the equation should be y=mx+b and that on the graph the answer is (3,2) but i just don't understand how to create the equation to solve for 84-inches and 60-inches tall questions. after two days, i need .

1: 4 if the wew 35 surfboards at the beach how many were short boards?

Twelve less than a number is at most 20