Write an equation that models the sequence 400, 200, 100, 50, ...

A) y = 400 (2^x)

B) y = 50 (2^x)

C) y = 1/2x + 400

D) y = 400 (1/2) ^x-1

Ok so i have 550 pieces of candy to pass out and every 5 mins i hand out 20 pieces, after 25 min how many do i have? how would i find the answer?

The mean temperature for the first 4 days in January was 1°C. The mean temperature for the first 5 days in January was 0°C. What was the temperature on the 5th day?

one group has five people in each person has one granola bar another group has five people at each person has zero granola bar which group has more granola bar

Jeeren spent 1/4 hour on homework before school, a other 1/2 hour after she got home, and a final 1/3 hour after dinner. Did she spent more or less than an 1 hour in homework in all?

jay spent 3/8ths of his life working for a company, if jay has been working for his current company for 15 years, how old is he?

What is 2 3/5 + 1 3/5

Credit card A has an APR of 15.8% and an annual fee of $72, while credit card b has an Apr of 19.6% and no annual fee.

At another school they sell a different brand of gift wrap which costs $2 per package and cards for $5 per package. Your friends class sells 220 packages and earns a total of $695.

A publisher prints 1,912 copies of a book in each print run. If they print 305 runs, the manager wants to know about how many books will be printed. What is a reasonable estimate?

On Saturday, you catch insects for your science class. Five of the insects escape. The remaining insects are divided into three groups to share in class. Each group has nine insects. How many insects did you catch on Saturday?