What value of n makes the equation true? (2x^9y^n)(4x^2y^10)=8x^11y^20

Which is greater, 7 p 5 or 7 c 5? 7p5 7c5

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?

Which expressions are equivalent to -7+3(-4e-3)? choose all answers that apply: choose all answers that apply: a -4(3e+4)? 4(3e+4) b 12e12e c none of the above