Answer: d
explanation: baseball cards already take up half so it cant be a or c because those are more than half and if you add all of the numbers up you would get 40. 15 out if 40 is 3/8 and baseball cards take up 4/8 and football cards take up 1/8 so your answer would be d.
245 divided by 49 = 5 therefore there are 5 seats in each row.
Answer:
See explanation.
Step-by-step explanation:

Common factor: y

Answer:
(See explanation below for further details).
Step-by-step explanation:
Let be a parametric curve represented by
and
, where
is the parametric variable.
The curve is represented graphically with the help of a graphing tool, whose outcome is included in the image attached below. The corresponding rectangular equation is found by eliminating t of each equation.
and 




The parametric equations represents a linear function (first-order polynomial).