The cost of a school yearbook was $40 last year. This year the yearbook costs $50. What is the percentage increase of the yearbook from last year to this year? 10%

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.

An ant travels at a constant rate of 30cm every 2 minutes.at what speed does the ant travel per minute

In the equation sqrt(n+5)-sqrt(11-10)=1. what is the value of n