Math help!!!!!!=[?

Question

If CG is an altitude of Triangle ABC, then _______.
CG is perpendicular to AB
CA is perpendicular to AB
G is the midpoint of AB
CG is parallel to BC
What is the equation of the line through points (-3, 2) and (-4, 5)?
y = (2/3)x - 6
y = 2x - 4
y = 2x + 2
y = -3x - 7
Given Triangle RST is similar to Triangle DEF. If m Ang E = 38, m Ang R = 43, and m Ang T = 7x + 8, then x = ?
13
14.14
4.29
15
A trapezoid of area 150 square units has one base of length 18 and height 12. Find the length of the other base C
3.5
7
3 sqrt(2)
14
Refer to triangle DEF in Figure 5, if m Ang D = 30o, m Ang E = 60o, and DF = 12, what is ME in simplest form?
2 sqrt(3)
6
6 sqrt(3)
12
A square has diagonals of length 8 cm. Find the area. ___ square cm
32
16 sqrt(2)
12
3 sqrt(2)
The radius of a Circle O is 4, if radii OA and OB form 90o angle, AB = ?
4 sqrt(2)
4
16 sqrt(2)
8
If a triangle has sides of lengths 8, 4, and 4 sqrt(3), is the triangle right?yes

Answer 1

♠ kid, i hate staying in voting; so no help, sorry!
Too many questions, and no response;

Answer 2

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