14. An airplane begins its descent at 1 miles above the ground. After 15 minutes, the airplane is mile above the ground. Find the change in
height of the airplane. If the airplane continues to descend at this rate, how
long does the entire descent last?

26?

step-by-step explanation:

the answer is simply just 6n add the two together as they have an 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.