Will mark brainliest!
given the explicit formula for a geometric sequence, find the first 5 terms.
an = 3^n-1
an = 2 * (1/4)^n-1
an = -2.5 * 4^n-1
an = -4 * 3^n-1

Rob spent 25%, percent more time on his research project than he had planned. he spent an extra h hours on the project. which of the following expressions could represent the number of hours rob actually spent on the project? two answers

I'm at a bookstore with $\$35$ in my pocket and a $20\%$-off coupon. what is the cost of the most expensive book i can buy with my money and the coupon? (assume that there are books of every possible price in the bookstore. it's a large bookstore! )

Isaac wants the equation below to have no solution when the missing number is placed in the box. which number should he place in the box?