Answer:
20 are cows 10 chickens 20 times 4 is 80 10 times 2 equals 20 80+20=100
Step-by-step explanation:
I got 15×4=60 15×2=30 and add them together and you get 90 in sorry it's not 100 but its the closest number I got which is 15 cows × 4 legs and 15 chickens × 2 legs
