Tom has deposited $500 in an account which earns 2% interest each year. which expression correctly shows the total value of his account after 3 years?

a) 500 + 0.02 + 0.02 + 0.02
b) 500 + 0.02[500 + 0.02(500 + 0.02*500)]
c) 500 + 0.02*0.02*0.02(500)
d) 500 + 3(0.02)500

Tickets to a science exposition cost $5.75 each for studentd and $7.00 for adults.how many students and adults went if the ticket charge was $42.75

What is the probability of throwing several dice with sum equal to 6 (six)? show the ways of possibilities for sum 6 (as the numerator) and the ways of throwing n dices for n = 1, 2, 3, 4 or 5 as denominator for all the questions to earn full credits. (a)throw one die, (b) throw two dice, (c) throw three dice (d) throw 4 dice, (e) throw 5 dice

Can someone tell me if this is perpendicular? !