Write an equation of the line that passes through 7,10 and is perpendicular to the line y=1/2-9

Jack has a piece of red ribbon that is two times as long as his piece of blue ribbon. he says that he can use two different equation to find out how long his piece of red ribbon is compared to his piece of blue ribbon is. is he correct? explain his reasoning

Jane has 5 nickels.john has 3 dimes.jane says she has a greater amount of money.with the information given,is she correct?

The value, v, of kalani’s stock investments over a time period, x, can be determined using the equation v=750(0.80)^-x. what is the rate of increase or decrease associated with this account? 20% decrease 20% increase 25% decrease 25% increase