Ayearbook company promises to give the junior class a picnic if they spend at least $28,000 on yearbooks and class rings. each yearbook costs $35 and each class ring cost $140. the situation is represented by y greater than or equal to -1/4x+200

(a) how many class rings would they need to sell if they sold 320 yearbooks?

(b) give one possible combination of yearbook sales and ring sales that will allow the class to have picnic.

(c) if the juniors sell 240 yearbooks and 120 class rings will they be able to have the picnic?

somebody .

c.   x=2.4cm

step-by-step explanation:

similar triangles are triangles which have the same shape but not the same size. this means their angle measures are equal but their side lengths are not instead they are proportional. to solve, we will set up a proportion and solve.

a proportion is two equal ratios set equal to each other. we form the ratios by finding corresponding sides (sides which match to each other on both triangles by their position). out ratios will be one side of the small triangle over the corresponding side on the big triangle as shown below:

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to solve the proportion, we'll cross multiply by multiplying numerator with denominator across the equal sign.

i do not know the answer

step-by-step explanation: