F(n)=2(1/2)^n+1 +4 h(t)=t+4/t-2 (h o f)(0)=

use formula for the circle a=3.14

step-by-step explanation:

a 4/6 = 9/12   not proportional

step-by-step explanation:

to find which are not proportional, we can use cross products

if it is true, they are proportional.   if it is not true, they are not proportional.

a 4/6 = 9/12

4* 12 = 6*9

48 = 54

not this is not proportional  

b 2/3 = 12/18  

2* 18 = 3 * 12

36 = 36

this is proportional

c 5/4 = 10/8  

5*8 = 4*10

40 = 40

this is proportional

d 7/5 = 35/25

7*25 = 5 * 35

175 = 175

is proportional

the answer is a.

step-by-step explanation:

in three games of golf, alex shot two under par four times.

the answer is 54 sq. ft. i just did this question, on odyssey ware, and it was right. make brainliest.