6. Who is correct? Explain why. Bob says, "You can add 4 to each side of the equation y + 8 = 18 and the equation will still be true."
Sally says, "You can subtract from each side of the equation y + 8 = 18 and the equation will still be true."

Iwant to know what 3g+5h+4g-2h is my teacher is too selfish to tell us

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.

Xy x xy if a and b are positive integers such that a*b=9 and b*a=72 what is the value of a/b