Simplify both sides of your equation.
Subtract 4 from both sides.
Multiply both sides by 2(-1).
m = -12
Let x be the number in the problem. When it states that x is "no more than -10", it means than it is less than or equal to -10. So, we have

x≤-10
In order to cancel out the

on the left and isolate x, we multiply both sides by

(since

·

=1). Thus, we have
x≤-10·

=-15
Therefore, x≤-15
To solve this you would divide until you can’t. I recommend staying in whole numbers:) I always divide by twos because I think it’s more efficient! 4 divided by 2 is 2 and 30 divided by 2 is 15 sooo (2 hours to 15) hope this helped!
Firstly, you change it to miles per second and then to feet
102miles per hour(60×60s)
102 per 120s
Divide
102÷120
=0.85miles per second
Convert to feet
=4488 feet per second
B!
hope this helps, it just seems like the best answe.