The kayak's own speed is 17 km / h. The speed of the river is 1.5 km / h. 1) How many kilometers did the kayak sail against the current in 3 h? 2) How many kilometers did the kayak go downstream in 4 hours?

relating to or denoting a system of numbers and arithmetic based on the number ten, tenth parts, and powers of ten.

step-by-step explanation:

answer is the third choice:

3x^5+4x^4+x^3+2x^2-10x-7=0

step-by-step explanation:

the distance between the school and her home is 3.6km.

12 mins = 0.2 hours = 1/5 hour

54 ÷ 3 = 18km per hour

1/5 of 18 = 3.6km per 12 mins