Answer:
it's sas
Step-by-step explanation:
statement: angle pqr is congruent to angle sqt. reason: they are vertical angles
statement: line pq is congruent to line qt
reason: definition of midpoint
statement: line sq is congruent to line qr
reason: definition of midpoint
hope this helps
Answer:
5. is 39 and i don't want to answer the other one sorry:(
Step-by-step explanation:
Answer:

Step-by-step explanation:
{90° = m∠1 + m∠2
{105° = 2m∠1 - m∠2
_______________

All you have left to do is this:

So, your two angle measures are 
I am joyous to assist you anytime.
Answer:
Step-by-step explanation:
Since each trial is independent of the other
no of mistakes he does is binomial with p = 1/3
a) the probability that he makes no mistakes on his first 10 orders but the 11th order is a mistake
= 
b) Prob that shanker quits = P(Shankar does I one mistake and Fran does not do the first one)+Prob (Shanker does mistake in the II one while Fran does both right)
= 
U = -b + 21 . . . (1)
u = -2b + 30 . . . (2)
Equating (1) and (2),
-b + 21 = -2b + 30
-b + 2b = 30 - 21
b = 9
u = -9 + 21 = 12
Therefore, (b, u) = (9, 12).