Noah bought 15 baseball cards for $9.00. Assuming that each baseball card costs the same amount, answer the following questions. How much will 30 baseball cards cost?

step-by-step explanation:

what is the figure? attach a picture.

answer:  

step-by-step explanation:

odd numbers are only divisible by 1 and itself.

even numbers are divisible by more than 1 and itself.

for example 6 is even because it is divisible by more than 1 and its self. 1 x 6= 6 ; 2 x 3= 6

and 7 is odd because only 7 x 1 equals seveb

the ratios are reciprocals im positive

step-by-step explanation:

they are all positive numbers so it wouldn't be the other ones

30,40,50 is correct answer