Paul has 2/3 as many postcards as shawn. the number of postcards shawn has is 4/5 of the number of postcards tim has. if the three boys have 280 postcards altogether, how many more postcards does tim have than paul?

Sole with work in 10 years, the average number of hours of tv watched per week by teenagers dropped from 23.9 to 21.4. find the percent of change.

Which exponential function has an initial value of 2? f(x) = 2(3x) f(x) = 3(2x)

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