Translate the and equation and then solve the equation: four fifths of a number is 20. determine the numberf

Acharity is conducting a raffle, and it sells one ticket each to 35 women and 21 men. if 5 winners are randomly selected, what is the probability that they are all men? round to five decimal places. 0.00533 0.06268 0.09537 0.07776

Prove that the value of the expression 7^8–7^7+7^6 is divisible by 43.

Is a square always, sometimes, or never a parallelogram