Algebra homework help

Question

Problem: ​A rowing team practices rowing 2 miles upstream and 2 miles downstream. The team can row downstream 25% faster than they can row upstream.

a. )Write and simplify an expression for the total amount of time the team spent rowing.

b. )If the team rows 20 miles per hour upstream, how much time do they spend rowing?

.

Answer 1

st+1.25st=4....................

Answer 2