Answer:What’s the question-
Step-by-step explanation:9-4 and greater than -19? Oh 5 because 9-4=5 but it’s greater than -19 because -19 is a negative number.
30+x=42 I think because it's has to equal 42 and he already has 30
Answer: C
all shapes must equal 360 degrees
90 x the 4 angles of the square equals 360 degrees