Is the following relation a function?

Find the area of a trapezoid with a height of 23, base 1 of 10 and base 2 of 18

Assume that y varies inversely with x. if y=1.6 when x=0.5 find x when y=3.2 acellus answer

Avery’s piggy bank has 300 nickels, 450 pennies, and 150 dimes. she randomly picks three coins. each time she picks a coin, she makes a note of it and puts it back into the piggy bank before picking the next coin.