Enter the degree of the polynomial 10x^4+4x^5+7x^2+6x^7-8x^6

2-digit numbers less than 91 which are 1 less than a multiple of 10

Write numerical coefficient of y² in the expression 2x² - 15xy – 7y²

Colby and jaquan are growing bacteria in an experiment in a laboratory. colby starts with 50 bacteria in his culture and the number of bacteria doubles every 2 hours. jaquan starts with 80 of a different type of bacteria that doubles every 3 hours. let x equal number of days. colbys experiment follows the model: a.) y=50*2^x b.) y=50*2^8x c.) y=50*2^12x jaquans experiment follows the model: a.)80*2^x b.)80*2^8x c.)80*2^12x