20 points! ; )
lisa spent $67 for a skateboard and $25 for a protective helmet.
what percent of the total amount that lisa spent was the price of the skateboard? round to the nearest tenth of a percent, if necessary.
a.
62.7%
b.
72.8%
c.
75%
d.
81.7%

Autility company burns coal to generate electricity. the cost c(p), (in dollars) of removing p percent of the some stack pollutants is given by c(p)= 85000p/100-p a) find the cost to remove 30% of the pollutant b) find where the function is undefined

To determine the number of deer in a forest a forest ranger tags 280 and releases them back

Someone answer asap for ! the following statements are true about the coins calvin and sasha have collected. * calvin and sasha has the same amount of money. * calvin has only quarters. * sasha has dimes, nickels, and pennies * calvin has the same number of quarters as sasha has dimes. * sasha has $1.95 in coins that are not dimes. exactly how many quarters does calvin have?