Indicates the magnitude and unit in the following measurements
​

Ibeg you to me 20. a reaction produces 4.93 l of oxygen, but was supposed to produce 1 mol of oxygen. what is the percent yield?

The ratio of the perimeters of two similar triangles is 4: 3. what are the areas of these triangles if the sum of their areas is 130cm2?

At your job you're paid $50 per week plus $3 per sale at least how many saled do you need to make in order to have over $250