Answer
an=a1+(n-1)d
Step-by-step explanation:
a2-a=9_2=7
a3-a2=16-9=7
a4-a3=23-16=7
a5-a4=30-23=7
Answer:
D
Step-by-step explanation:
x cannot repeat, look at the others and you will see that x repeats except in D
The students that are correct are Jake , and Liu because 51, and 21 are composite.
Hope this helps!
