An electrical solder is made by combining 15 g of tin with 85 g of lead. Tin has a density of 7.3 g/cm3 and lead has a density of 11.3 g/cm3. Calculate the density of the solder.

Abox contains 1 plain pencil and 4 pens. a second box contains 5 color pencils and 5 crayons. one item from each box is chosen at random. what is the probability that a plain pencil from the first box and a color pencil from the second box are selected? write your answer as a fraction in simplest form.

Adozen bananas weigh 3 pounds how many ounces does 1 banana weigh

You paid 28.00 for 8 gallons of gasoline. how much would you pay for 15 gallons of gasoline?