From the following numbers, select all that are rational.
A.6/7
B. 0.62
C. 0.6
D. 0.6π

All those canbe expressed in the form of p/q, where q≠0 are rational

clearly A is rational

now 0.62 =62/100=31/50its also rational

and 0.6 =6/10=3/5--- it's also rational

0.6π =(3/5)π, 3/5 is rational but π is irrational so overall it's irrational!

A,B&C are rational!

✌️:)

x is the total time in minutes for the free response

you are given number of questions as 15 - m and time per item as 8 minutes

to find x multiply the two givens together:

x = 8 * (15-m) = 8(15-m)