Answer:
The measure of angle RST is 
Step-by-step explanation:
see the attached figure to better understand the problem
we know that
-----> equation A
-----> equation B
equate equation A and equation B




The measure of angle RST is equal to

For 10 here is the answer and for 9 i’ll reply to my comment
Answer:less than
Step-by-step explanation:
Answer:
x<3
Step-by-step explanation:
4x-7<5
4x<5+7
4x<12
x<3
The probability that it doesn't land on 4 would be 3/8. This is because theres a 5/8 chance it lands on 4 so just do the opposite which would be 3/8.