Which fraction is less than 3/4? 7/8 7/12 15/16 17/20

Which addition property is being illustrated below? (type commutative or associative) (6 + 7) + 1 = 6 + (7 + 1)

Which of the following shows the graph of y=2e^x?

Plz asap what is the range of the cluster in the scatter plot a. between 4 and 8 years of experience b. between $40,000 and $60,000 c. between 6 and 12 years of experience d. between $10,000 and $60,000