Help me please There are 9
9
books stacked on a shelf. The thickness of each book is either 1
1
inch or 2
2
inches. The height of the stack of 9
9
books is 14
14
inches. Which system of equations can be used to determine x
x
, the number of 1
1
-inch-thick books in the stack, and y
y
, the number of 2
2
-inch-thick books?
F. x+y=14x+2y=9
x+y=14x+2y=9

G. x+y=92x+y=14
x+y=92x+y=14

H. x+y=9x+2y=14
x+y=9x+2y=14

J. x+y=142x+y=9
x+y=142x+y=9

you can first factor out the n to get n(1+5). we know that 1+5 is 6, so we just have 6n.

answer: the sun

explanation:

water cycle describes the evaporation of water from earth's surface, formation of clouds and precipitation water back onto the surface of earth. seventy percent of the earth is covered with water in the form of seas and oceans. the heat of the sun causes the evaporation of water from the surface of the ocean. the water vapors rise and condense to form water droplets. the collection of these water droplets form clouds which rain down again.

the evaporation of the oceans surface water as part of the water cycle is caused by the sun

step-by-step explanation:

x-intercept:

(

−

1

+

√

7

,

0

)

,

(

−

1

−

√

7

,

0

)

y-intercept:

(

0

,

−

6

)

1 a and 2 b

hope this