A scientist is studying a culture of bacteria. He starts with 300 bacteria, and the amount of bacteria doubles every hour. Which equation can be used to find the number of bacteria, y, after x hours?
A .y = 300x2
B. y = 300 (2x)
C. y - 2x + 300
D. y 300(2)
E. y = 2(300)

(a) what was jennifer's gross pay for the year? (b) how much did she pay in state income tax? (c) the amount in box 4 is incorrect. what dollar amount should have been entered in box 4? (d) the amount in box 6 is incorrect. what dollar amount should have been entered in box 6? (e) how much was jennifer's fica tax? (f) jennifer's taxable income was $32,104. she's filing her taxes as head of household. does she owe the government more in taxes, or will she receive a refund? how much will she owe or receive?

Ben wants to play a carnival game that costs $2. in his pocket he has 5 red tickets worth 35 cents each, and 15 blue tickets worth 10 cents each. which of the following systems of inequalities correctly represents the constraints on the variables in this problem? let represent the red tickets and b represent the blue tickets.

Could someone with number 1 and 2