I would like help in this

1. 2 + s(t) -s

2. 8xy

4.

Step-by-step explanation:

2. 5*x*y+3xy=

5xy+3xy=

8xy

im sorry but no. i just need to answer for 50 poonts oof

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