What is the answer to
y+4=15

y=11

Step-by-step explanation:

15-4=11

y=11

i hope this helps

y=11

Step-by-step explanation:

Subtract 4 from both sides of the equation:

y+4-4=15-4

You get y=11

40% of the guests called for room service

Step-by-step explanation:

first, we need to get the total number of guests,

170+255=425

next, we need to divide the number of guests that called by the total number,

170/425=0.4

finally, we need to turn tht decimal into a fraction, to do that we just move the decimal point 2 places to the right.

0.4→40%