The measures 4, 5, and 7 create a right triangle. True False

Hi my sisters and brothers can tell me the answer because i don’t understand the question

Use the distributive law to multiply. 3(4x + 5y + 6)

Since opening night, attendance at play a has increased steadily, while attendance at play b first rose and then fell. equations modeling the daily attendance y at each play are shown below, where x is the number of days since opening night. on what day(s) was the attendance the same at both plays? what was the attendance? play a: y = 8x + 191 play b: y = -x^2 + 26x + 126