Help pics below for part b the choices are The seventh-grade class earned more money in September or October by $30, $70, or $190

1.25, September, $30

Step-by-step explanation:

Part A: So, we want to find a number that is 120% of 1.5. This accounts for the 20% of the original as well as the final amount of 1.5 (This is confusing, I totally get why you were stuck!)

So, 1.2 x ? = 1.5

? = 1.5/1.2

? = 1.25

Part B: First, we wanna find what 40% of our original prices are.

1.5 x .4 = .6 (October)

1.25 x .4 = .5 (September)

Then, multiply that by the number of flowers sold.

.6 x 700 = 420 (Oct)

.5 x 900 = 450 (Sept)

So, I believe the answer is that they earned $30 more in September :)

< 4, -5>

step-by-step explanation:

starting from g. we move 4 right and then 5 down to get to h. that means the vector is < 4, -5>