Select the correct answer
what is the wavelength of radio waves?
a
between 1 x 10 and 1 x 10 meters
b
less than 1 x 101 meters
more than 1 x 10 meters
between 1 x 10.4 x 10 meters
e
between 4 x 10.7 x 10 meters

he spend 5.1 minutes chatting with his friends.

step-by-step explanation:

2/5+1/2=9/10

6/1-9/10=5.1

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)