The floor of a small foyer will be made from square ceramic tiles. each tile has a side length of 7 inches. if the dimensions of the foyer floor are 28 inches by 42 inches, how many ceramic tiles are needed?

It would be 4 2/3

Convert the mixed numbers to improper fractions

Use the algebraic formula for addition of fractions:

a/b + c/d = (ad + bc) / bd

Reduce fractions and simplify if possible

47 - 90 = 43

43 - 180 = x

x = 137

answer: (c) m∠qpo + (2x + 16)° = 180°

step-by-step explanation:

the opposite angles of a quadrilateral are supplementary.

so, ∠o + ∠q = 180°   and   ∠p + ∠r = 180°

since ∠r = 2x + 16°, we can use substitution as follows:

∠p + ∠r = 180°

∠p + (2x + 16)° = 180°