Question

an object that weighs 10ib on earth would weigh only 4ib on mars if you weigh 95ib on earth how much would you weigh on mars

Answer 1

*I'm assuming ib is a typo for lb.

You can set up a proportion saying:
$\frac{10}{4} = \frac{95}{x}$

Cross multiply:
$10x = 4(95)$
$x = \frac{4(95)}{10} = 38$

So, you would weigh 38 lbs on Mars if you weighed 95 lbs on Earth.