Answer:
B
Step-by-step explanation:
The equation would be 12 + 30 = x, because the amount of miles James ran all together would be the sum (what the numbers add up to).
Answer:
23/50
Step-by-step explanation:
27 + 23 = 50 (Implying that 50 is the total amount of tickets).
23 of them were sold to adults, so basically 23/50.
Remember a ratio can be written in 3 forms, so it can be either of these:
23:50
23/50
23 to 50
Formula

Z=standard score
x=observed value
u=mean of the sample
standard deviation of the sample
Answer:
B and C
Step-by-step explanation:
100% sure
because I helped u, do this pretty please:
look up "evil masterminds be like..."
click on the video with the donkey as the thumbnail
sub to the channel that made it