De is the midpoint mid segment of abc . how would i determine the value of x

Find the power series expantion of f(z)=log(4=3z) at the point z=-1

It says factor each expression completely 8y+48

Asmall business produces and sells balls. the fixed costs are $20 and each ball costs $4.32 to produce. each ball sells for $8.32. write the equations for the total cost, c, and the revenue, r, then use the graphing method to determine how many balls must be sold to break even.