Solve the equation for all real solutions in simplest form.
2r^2 + 7r– 1 = -3r^2

Answer this question! 30 points and brainliest! only if you know the answer.

98 point question what is the record for most points in one

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?