(algebra 1) please helppp i’ll mark brainliest to whoever gets it right

Answer:
a. Breakfast is 10 & Lunch is 15
Step-by-step explanation:
25 = 50%
x = 30%
y = 20%
1% = 0.5 because 25/50= 0.5
0.5 x 30 = 15 and 0.5 x 20 = 10