Wat is congruent mean ik this is a esey question but i am a cute dirty blonde but stupid so plz me and asap and if u do i will be ur friend : )

How do i make someone brainliest? (if you answer me, i might be able to make you brainliest! )

What is the expression in factored form? -x^2 + 3x + 28 a. (x-7)(x-4) b. -(x-7)(x+4) c. (x+4)(x+7) d. -(x-4)(x+7)

Acollection of coins has value of 64 cents. there are two more nickels than dimes and three times as many pennies as dimes in this collection. how many of each kind of coin are in the collection?