Simplify the expression: –2b + 7 – 2a + 5b – 6a

A.) –8a+ 3b +7
B.) 8a – 3b + 7
C.) –4a + 7b + 7
D.) 4a – 3b + 7

What could explain what happened when the time was equal to 120 minutes

God's gym charges a sign-up fee of $100 plus $30 per month. write an expression to represent how much someone would pay for a membership.

Consider a bag that contains 220 coins of which 6 are rare indian pennies. for the given pair of events a and b, complete parts (a) and (b) below. a: when one of the 220 coins is randomly selected, it is one of the 6 indian pennies. b: when another one of the 220 coins is randomly selected (with replacement), it is also one of the 6 indian pennies. a. determine whether events a and b are independent or dependent. b. find p(a and b), the probability that events a and b both occur.