I need help with graph pleasee​

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?

Which of the following vectors are orthogonal to (2,1)? check all that apply

Three lines meet at a point. set up and solve an equation to find the value of (a) is your answer reasonable? explain how you know