Answer:
15 and 5 hours.
Step-by-step explanation:
Call x the time taken by the first chap, and y the second.
Let's divide by 5 and play with the LHS of the first equation a bit:
we know how much x+y is ( first equation!) let's solve.
At this point it's easy to check that 
Migrate = to move from one place to another by people or animalsGlacier = large body of iceExtinct = no longer livingNomads = people who wander from place to place with no fixed homesIndigenous = Native; originating in the region or country where foundBering Strait = body of water between Russia and AlaskaArtifact = tools or weapons made by people in the past
Answer:
B
Step-by-step explanation:
Perpendicular lines have a reciprocal slope with the opposite sign. The y-intercept does not matter
Answer:
8x^2-8.76x+2.92
Step-by-step explanation:
Factor using FOIL and then simplify
Answer:
180 degrees
Step-by-step explanation:
straight angle equals a 180 degrees which is because the lobby is going up mot down.
