A battery with 20% of its full capacity is connected to a charger. Every minute that passes, an additional 5% of its capacity is charged. Graph the relationship between the battery's capacity (in % charged) and time (in minutes).

On a string instrument, the length of a string varies inversely as the frequency of its vibrations. an 11-inch string has a frequency of 400 cylces per second. find the frequency of a 10-icnch string.

Which shows the correct substitution of the values a,b and c from the equation 1=-2x+3x^2+1

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?