64 teams participate in a softball tournament in which half the teams are eliminated after each round of play.
a. write a formula to model the number of teams remaining after any given round of play.

Number of teams remaining after n rounds of play, p(n) = 2⁶⁻ⁿ

Step-by-step explanation:

This is an example of geometric progression,

Let p(n) represents the number of participants remaining after n rounds of play.

First term = 64

We have

Number of teams remaining after n rounds of play, p(n) = 2⁶⁻ⁿ

option c) graph of line going through 1, 4 and 3, 10

step-by-step explanation:

let y equal to margo's coin collection

let x equal to number of years

at the begining x=0, y=1 → point=(x,y)→point=(0,1)

she adds 3 coins per year, then y=1+3x

at x=1, y=1+3(1)=1+3→y=4→point=(x,y)→point=(1,4)

at x=3, y=1+3(3)=1+9→y=10→point=(x,y)→point=(3,10)

the graph of line going through (1, 4) and (3, 10), then the option c is the correct.