in the last hour, ellie observed 32 monarchs, 56 gulf fritillaries and 8 giant swallowtails visit her butterfly garden.
if 480 butterflies visit her garden, how many can we expect will be giant swallowtails?
a. 83
b. 160
c. 8
d. 40

she observed 32 monarchs, 56 gulf fritillaries, and 8 swallowtails. First you add those together

32+56+8=?

32+56+8=96

then you set up a proportion. 8 out of every 96 butterflies are swallowtails, so you set this up as a fraction- 8/96

then you must set the two numbers(96 and 480) equal, so you get this proportion. 8/96= X/480

you solve this by cross multiplying. 8 × 480 equals 3840, and then divide 3840 by 96 which equals 40. therefore the answer is...

D) 40

it is probably the graph on the bottom right.