book Maths Puzzle Numerical Ability

we need an example of primefactorization.

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book Other Question

I am trying to help a friend with her homework, but we have both hit a brick wall, can someone send us the process to solve the following equation?
2/5(10x+25)=-10-4(x+3)
Thank you so much for your help.
Patty & Sunshine A weather ballon rises at the rate of 8 feet per second at a time when the wind is blowing at 9.44 mph. After 15 minutes, how far away in feet from the launch point is the ballon ? (Round to the nearest hundred feet)