Read and answer! how do i multiply 0.79 x 3.7 step by step? pls

Can some one explain this i got sent this. is this a threat i’m scared

Solve each quadratic equation by factoring and using the zero product property. x^2 - 8x + 30 = 3x

Jubal wrote the four equations below. he examined them, without solving them, to determine which equation has no solution. which of jubal’s equations has no solution hurry