Is square root of 12 over 4 is irrational or rational and why

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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?

Rewrite the following quadratic functions in intercept or factored form. show your work. y = x^2 + 7x + 10