Mark is playing an online puzzle game. He has 40 points and earns 2 points
for each puzzle he solves correctly. He will advance to the next level if his
score is over 60 points.
Which inequality can Mark use to find how many more puzzles he must solve
to advance to the next level?
O A. 2x+40 < 60
O
B. 40x + 2 > 60
O
O
C. 2x+60 < 40
D. 2x + 40 > 60

19.side- angle- side

20. angle- side- angle

step-by-step explanation:

56

step-by-step explanation:

2. angles qrt and qst both measures 156 degrees.

step-by-step explanation:  

we have been given a diagram of a circle and we are told that measure of arc qvt is 156 degrees.  

we can see from our given diagram that angle qrt and angle qst subtends to arc qvt.

since we know that angles subtended by the same arc at the circumference are always equal.

by angle subtended by same arc theorem, measure of angle qrt and angle qst will be equal to the measure of arc qvt.

therefore, angles qrt and qst both measures 156 degrees and 2nd statement is the correct choice.