Avani is building a rectangular play area. The length of the play area is 7.5 meters. The width of the play area is 5.3 meters. If she wants to cover the area in foam, how much foam does she need to buy?

Finding the area of a rectangle is (length) * (height). Since you have those values we simply fill them in, so 7.5 * 5.3 = the area in square meters (since you’re dealing with meters, the area will be in square meters). The area you are looking for is then 39.75 square meters based on the equation set up above. So, Avani will need 39.75 square meters of foam if she would like to cover the entire play area.

the law of definite proportions states samples of a compound will always contain the same proportion of elements by mass. in other words, a given compound will always contain the same elements in the same proportions by mass.the law of multiple proportions states when two elements combine with each other to form more than one compound, then the weights of one element that combine with a fixed weight of the other are in a ratio of small whole numbers.