Can the sum of a number and four is equal to 18?

What is A number used to produce another number when multiplied by itself? What type of math is used to build a pyramid? What is the difference of 27 and 14.829? What does the math term polygon mean? Why does the world have months? What is the residue of the function cot z next to a given point residue at 0? How much is 64cm in inches? What is apothecaries' weight equal to 20 grains? What are the common multiples of 7 and 13? What linear dimensions make five acres of land. This is so we can put up a fence around the five acres? 100 times 400? Which ones bigger 0.45 or 3 over 4? What is 409614 rounded to nearest thousand? You make 16 dollars an hour how much will you make in a year? What is the least common factor of 60 and 84? What weighs about 220 million tons? Why hands start to shake as you age? What is the correct answer for 7x plus 2y equals 5? What two numbers make 336? What is the slope of a line that is perpendicular to the line whose equation is 2x plus y equals 8?