In an arithmetic sequence, t7 =23 and t13=138 determine the common difference, first term and t50

Find the zeros of the function. write the smaller solution first, and the larger solution second f(x)= (x+6)^2-49

Write an algebraic expression to match each statement a. four less than 8 times a number b. twice the difference of a number and six c. nine from a number squared

Simplify (1/2)4th power a. (1/16) b.(1/8) c.(1/4)