Given that b = {1, 2, 3, 4}, how many subsets have exactly two elements?

Twice the sum of a number and 4 is equal to three times the difference of the number and 7. find the number.

What is the shape of the height and weight distribution

Danielle earns a 7.25% commission on everything she sells at the electronics store where she works. she also earns a base salary of $750 per week. what were her sales last week if her total earnings for the week were $1,076.25?