Which expression is equivalent to 1.5x + 12 + 4x?

a. 6.5x

b. 5.5x + 12

c. 17.5x

d. 16x + 1.5

Asystem of linear equations contains two equations with the same slope. select all of the correct statements. i a. the system may have two solutions. - b. the system may have infinitely many solutions. c. the system may have one solution. o d. the system may have no solution. submit

If mary had 320 toy cars and she gave her friend 50 cars and then she gave her brother 72 more cars how much toy cars would mary have left ● explain with proper details

Either enter an exact answer in terms of \piπ or use 3.143.14 for \piπ and enter your answer as a decimal.