Answer:
10
Step-by-step explanation:
Half of 10 is 5. 5+5 is 10
Y=-1/5x+3 the 3 would be the y intercept and the -1/5 is your slope and you would start at the 3 and use your slope and go down one and over five since it’s negative
The sum is adding
3 times a number is 3x
And 15 is +15
3x+15
