What is the value of x? enter your answer in the box. units triangle a p r with line segment c d parallel to segment a p with c between a and r and d between p and r. a c equals 10. c r equals x. p d equals 15. d r equals 42.

What is the number 321,000,000 in scientific notation? also what is the number? ?

Which expression is rational? 6. , square root two, square root 14, square root 49

Amanda went into the grocery business starting with five stores. after one year, she opened two more stores. after two years, she opened two more stores than the previous year. if amanda expands her grocery business following the same pattern, which of the following graphs represents the number of stores she will own over time?