Rick deposits $3 into his bank account. The following week, he deposits 3 times that amount. Each week after that, he deposits 3 times the amount he did the previous week. 1. How much does Rick deposit in all in the first 3 weeks show your work? Show your work. 2. Do you think Rick can keep up this savings plan for a year? To help you decide, use a calculator to find 3 15, the amount he would deposit in week 15.

HELP IMMEDIATELY. BTW THIS IS EXPONENTIAL EXPRESSION MATH.

What is the solution set of the quadratic inequality x^2-5< or equal to 0

Ariana starts with 100 milligrams of a radioactive substance. the amount of the substance decreases by 20% each week for a number of weeks, w. the expression 100(1−0.2)w finds the amount of radioactive substance remaining after w weeks. which statement about this expression is true? a) it is the difference between the initial amount and the percent decrease. b) it is the difference between the initial amount and the decay factor after w weeks. c) it is the initial amount raised to the decay factor after w weeks. d) it is the product of the initial amount and the decay factor after w weeks.

Whit h equation best represents this situation the number 98 increased by an unknown number equal to 120