Answer:
75min or 1 hour 15min
Step-by-step explanation:
45/12 = 3.75min per problem
3.75 x 20 = 75min or 1 hour 15min
Firstly, you divide by -2 then |x| which equals 3 and the solutions x+3
Ones negative and ones positive
The last one isn’t
there can’t be more than 1 of the same x value