In order of operation plsss help 10/5 + 3 x 5 - 5

Afamily has five members. a mom, a dad, two sisters, & a brother. the family lines up single file. what is the probabillity that the mom is at the front of the line

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?

Mia’s gross pay is 2953 her deductions total 724.15 what percent if her gross pay is take-home pay