Which answer best describes the simpler problems that could be used to solve this story problem? rosie bought 3 plane tickets for $312.45 each. donald bought 5 plane tickets for $297.45 each. how much more did donald spend than rosie?

You add them both up

3 times 312.45 = 937.35

and 5 times 297.45 = 1,487.25

then subtract Rosie's amount from David's

1,487.25

-   937. 35

which equals 549.9

the answer is $549.9 more than Rosie

x > 1.3

step by step:

8.5−0.9x> 9.8−1.9x

step 1: simplify both sides of the inequality.

−0.9x+8.5> −1.9x+9.8

step 2: add 1.9x to both sides.

−0.9x+8.5+1.9x> −1.9x+9.8+1.9x

1x+8.5> 9.8

step 3: subtract 8.5 from both sides.

1x+8.5−8.5> 9.8−8.5

1x> 1.3

step 4: divide both sides by 1.

1x/1 > 1.3/1

practice. practice. practice.