Twice the difference of a number and 8 is 6

Write an equation using variable w

Express the following as a function of a single angle. cos(60) cos(-20) - sin(60) sin(-20)

Carley bought a jacket that was discounted 10% off the original price. the expression below represents the discounted price in dollars, based on x, the original price of the jacket.

Aculture started with 4,000 bacteria. after 5 hours, it grew to 5,200 bacteria. predict how many bacteria will be present after 19 hours. round your answer to the nearest whole number.