Answer:
[tex] the \: fee \: for \: one \: class \: in \: dollars \: is\to = \underline{ \boxed{ \$65}} \\ [/tex]
Step-by-step explanation:
[tex]if \: \boxed{ y=40x+25 }\\ if \: \boxed{y} \: is \: the \: total \: cost \ \: : then \: when \: \boxed{ x = 1} \\ y=40(1)+25 \\ y=40+25 \\ \underline{ \boxed{ y = 65}}[/tex]
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