The sum of 86, 68, and 38 is 192. what do you also know about the sum of 68, 38, and 86? explain

45 was divided by a power of ten to get 4.5. what power of ten was it divided by? people 4.5

In a class, there are 12 girls. if the ratio of boys to girls is 5: 4 how many boys are there in the class

At the electronics store you have a coupon for 20% off up to 2 cds you buy for cds with the original cost of $10.99 each the sales tax is 5% what is the total cost of your purchase