Item 8 What is 31.5632 rounded to the nearest tenth?

When using the linear combination metho e linear combination method to solve a system of linear equations, the four options are:

When 142 is added to a number the result is 64 more times the number my options are 35 37 39 41

The marked price of an article is 25% above its selling price and the cost price is 30% less than its marked price . find the discount percent and gain percent. only a brainlest can solve it i will mark you brainlest