Given the geometric sequence with $a_3=16$  and  $a_6=1024$ , what is  $a_1$ ?   

(a)  

Find the sum of the following series: 1 + 5 + 9 + ... + 421

(a)  

A ball is dropped from a height of 400 feet. Each time it bounces, it reaches 75% of its previous height. What is the total distanced traveled before coming to rest? (a)   feet

A population of birds decreased from 500,000 in 2010 to 300,000 in 2020. Find the 2024 population under a linear model.

(a)  

A population of birds decreased from 500,000 in 2010 to 300,000 in 2020. Find the 2024 population under an exponential model.

(a)  

The number of subscribers to a youtube channel decreases by 8% per month. If the youtube channel had 1 million subscribers last October, how many subscribers does it have currently?

(a)  

A deposit of $1000 into an account that is compounded monthly with an annual interest rate of 4.25% is worth how much in 5 years?

(a)  

Given an account with annual interest 1.5% compounded continuously, what was the initial amount if the balance after 10 years is $500?

(a)