A shark swims a total of 20 miles in the last four days. Assuming that the shark swims at a constant rate, how many miles did the shark swim on the first day? Consider your choice of signs (+ or -).

Solve this problem! extra ! 3025/5.5 = a/90.75

What is the next step in the given proof? choose the most logical approach. a. statement: m 1 + m 2 + 2(m 3) = 180° reason: angle addition b. statement: m 1 + m 3 = m 2 + m 3 reason: transitive property of equality c. statement: m 1 = m 2 reason: subtraction property of equality d. statement: m 1 + m 2 = m 2 + m 3 reason: substitution property of equality e. statement: 2(m 1) = m 2 + m 3 reason: substitution property of equality

How can writing phrases as algebraic expressions you solve problems?