Aboat can travel 12 km down the river in the same time it can go 4 km up the river. if the current in the river is 2 km per hour, how fast can the boat travel in still water?

i know the answer but i don't know the steps so good luck! and have fun with 100 points! ^-^

Find the height of a square pyramid that has the volume of 32 ft.³ and a base lengthof 4 feet

Pick the expression that matches this description: a polynomial of the 5th degree with a leading coefficient of 7 and a constant term of 6 (choice a) 7x^5+2x^2+6 (choice b) 7x^6−6x^4+5 (choice c) 6x^7−x^5+5 (choice d) 6x^5+x^4+7

1. if we have 3 babies what is the probability they’re going to be all boys? 2. if we roll 2 die at the same time what is the probability of getting less than 10 on the first roll and a 5 on the second roll 3. if we have 3 babies what is the probability their is going to be 2 girls? 4. if we have 3 babies what is the probability of having no more than 1 girl? 5. it we have 3 babies and then have another 3 babies what is the probability of us having at least 1 boy and then having all girls?