Line a has a slope of -4/3 and line b has a slope of -3/4 are both lines perpendicular.

No they are not perpendicular.

Step-by-step explanation:

No they are not because they are both line b is still negative.

In order for them to be perpendicular is if the slopes were like this

-4/3x and 3/4x

or

4/3x and -3/4x

They have to be complete opposites.

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for a it would be 24 children.

for b i don't understand the question. is it saying for each individual person they pick 5 reds to 7 greens or is it the whole group. clarify and i hope this can you.

step-by-step explanation: