Called ultimate addition, u(x) is defined to be the sum of all digit of an integer until the result is single digit integer. if m is a two-digit integer, how many possibility of m such that u(m) = u(50654)? a. 2 b. 5 c. 8 d. 10 e. 12

What is the quadric regression equation that fits these data

Afarmer has a large field that is x feet in length. he wants to fence in a rectangular section in the middle of the field , leaving a length of 100 feet of open field behind each end of the fenced rectangle. he also wants the width of the fenced-in space to be 100 feet less than its length. find the expressions to represent the length and width of the fenced section of the field

Sally deposited money into a savings account paying 4% simple interest per year. the first year, she earn $75 in interest. how much interest will she earn during the following year?