Set notation and interval notation:

-3 is less than or equal to x, which is less than 5

in problems involving proportions, we can use cross products to test whether two ratios are equal and form a proportion. to find the cross products of a proportion, we multiply the outer terms, called the extremes, and the middle terms, called the means.

hope it

yes the total will be same because in both of them the expression.is rearranged but their sign remains the same hence it hss just been shuffled