Andy is building a model of a square pyramid for a class project. the side length of the square base is 11 inches and the slant height of the pyramid is 15 inches. what is the surface area of the model pyramid? a. 286 in.2 b. 451 in.2 c. 203.5 in.2 d. 330 in.2 ? ?

B. 451 in.2 is the answer

Y=3x+1 so the first one

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.