2+2=4 this is because if you have two cookies and get two more then you have 4 now 2-2=4 that's because if one friend wants 2 cookies and you have 4 then you say NO because they are mine get your own ∧ω∧
Emily is entering a bicycle race for charity. her mother pledges $0.90 for every 0.75 mile she bikes. if emily bikes 18 miles, how much will her mother donate?