How do i solve this? isn’t it already simplified? i’ll give brainliest

How many real-number solutions does the equation have? -4x^2 + 10x + 6 = 0 a. no solutions b. two solutions c. infinitely many solutions d. one solution

Tom drove 206 miles in 3.9 hours. estimate his average speed.

Abook store is having a 30 perscent off sale. diary of the wimpy kid books are now 6.30 dollars each what was the original price of the books