Answer:
4.: 15.84
5.: 193.2
6.: 10.7*5, 8.4*6, 7.5*7.5, 2.1*24
7.: 6, 5.75
Explanation:
4.: 6.6*2.4=15.84
5.: 27.6*7=193.2
6.: 10.7*5=53.5, 8.4*6=50.4, 7.33*6=43.98, 7.5*7.5=56.25, 2.1*24=50.4
7.: 1.6*6.25=10, all numbers higher than 6.25 will return products higher than 10, all numbers lower than 6.25 will return products lower than 10.