2/8+3/7+4/9=whats the sum of this

this answer is !

$75.00

step-by-step explanation:

i = prt

i = 1,5000 * 0.025 * 2

i = 75

ranks (& how to earn them):

-beginner (needs at least 0 points & 0 brainliest answers)

- hand (needs at least 100 points & 0 brainliest answers)

-ambitious   (needs at least 250 points & 0 brainliest answers)

-virtuoso (needs at least 500 points & 5 brainliest answers)

-expert   (needs at least 1,000 points & 10 brainliest answers)

-ace (needs at least 3,000 points & 15 brainliest answers)

-genius   (needs at least 15,000 points & 50 brainliest answers)

how to award brainliest:

you must wait until 2 people answer to award brainliest. i'm pretty sure that it should be next to the "" and "comments" buttons.  

the answer is a) y= 2 csc [0.5 (x+pi/2)]-1

step-by-step explanation: