Answer:1.)10%2.)50%3.)25%4.)31.25%5.)75%Step-by-step explanation:To find the percentage of a certain number you just need to divide the rate of the base, here is the given formula---->(P=R/B) lets try itFor the number one to find the percentage we need to follow this process: just simply divide 1 by 10 which results to 0.1to convert decimal to percentage multiply it by 100 and put the percentage sign so 100x0.1=10 then put the percent sign=10%For the rest of the question just follow the process above to get the answer.