Jimmy has seven times as many dimes as nickels. their value is $3.75. how many nickels does he have?

Is the figure congruent? yes or no?

Bring the fraction a/a-4 to a denominator of 16-a^2

Sandy is upgrading her internet service. fast internet charges $20 for installation and $52.45 per month. quick internet has free installation but charges $57.45 per month. part 1 out of 2 complete the equation that can be used to find the number of months after which the internet service would cost the same. use the variable x to represent the number of months of internet service purchased.