A train goes at a constant speed. If it covers 150 miles in 2 1/2 hours, what distance would it cover in 3 hours

Use the linear combination method to solve the system of equations. explain each step of your solution. if steps are not explained, you will not receive credit for that step. 2 + 9 = −26 −3 − 7 = 13

Find the value of the combination. 5 c 5

Pleas its really urgent and i would really appreciate it! what is the value of x? enter your answer in the box. x =