Planet earth has a mass of 5.9726 × 10 24 kilograms. and although 70% of the earth's surface is made of water, the water's mass is only 5 × 10 -4 percent of the earth's total mass. use scientific notation to estimate the mass of the planet's water. in your final answer, include all of your estimates and calculations.

What is the binomial expansion of (2x-3)^5

Part a: sam rented a boat at $225 for 2 days. if he rents the same boat for 5 days, he has to pay a total rent of $480. write an equation in the standard form to represent the total rent (y) that sam has to pay for renting the boat for x days. (4 points)

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.