Answer:
The number is 33
Step-by-step explanation:
Distributive property is
a(b+c)=ab+ac
we can make it easier by splitting up 63 into 60+3
so
7(63)=7(60+3)=7*60+7*3=420+21=441
The mid-point for given endpoints is (4,3)
Step-by-step explanation:
a mid-point is the point on a line segment that divides it into two equal portions.
If (x1,y1) and (x2,y2) are the coordinates of vertices of a line segment, then mid-point is given by:

given
(x1,y1) = (9,9)
(x2,y2) = (-1,-3)

The mid-point for given endpoints is (4,3)
Keywords: Coordinate Geometry, Mid-point
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First add like terms in this case 1+7=8. Then then divide. 2x/8= 4. X=4