Aumentos sucessivos de 20% e de 30% equivalem a um aumento único de que percentual? E
descontos sucessivos de 20% e de 30% equivalem a um desconto único de que percentual? E um aumento de 20% seguido de um desconto de 30% equivalem a
um único aumento ou desconto? De que percentual?

the answer will be b x² +x-1

step-by-step explanation:

step-by-step explanation:

two pairs of adjacent sides are of equal length. this implies that one diagonal divides the kite into congruent triangles, and so the angles between the two pairs of equal sides are equal in measure. it also implies that the diagonals are perpendicular.

6(h+1)/2=a

a=area

step-by-step explanation:

its the same thing as a square or rectangle but after multiplying two sides you need to divide it by two.