#### Answer

three terms; $0.5t^2$ and $5t$are variable terms with coefficients $0.5$ and $5$; $-7$ is a constant term.

#### Work Step by Step

Variable terms include a variable, and constant terms cannot change.
$0.5t^2+5t-7$
three terms; $0.5t^2$ and $5t$ are variable terms with coefficients $0.5$ and $5$; $-7$ is a constant term.