Select all the ratios that are equivalent to 8 : 6 A 4 : 3
B 6 : 8
C 10 : 8
D 16 : 12
E 7 : 5

I’m stuck on this i don’t understand.

For the rule of 78, for a 12-month period, the last term in the sequence is 12 and the series sums to 78. for an 10 month period, the last term is and the series sum is . for a 15 month period, the last term is and the series sum is . for a 20 month period, the last term is and the series sum is

Graph the linear function using the slooe and y intercept