What is the constant of proportionality in the equation above?

ok, think about it this way, the constant of proportionality is pretty much how y and x are related, say r is the constant of proportionality, then your answer would ne y = rx

so the constant of proportionality for your question would be 2.5 since you had y = 2.5x

Step-by-step explanation:

May I have brainliest please? :)

b. an equilateral triangle inscribed in a circle

step-by-step explanation:

we are given the figure of two circles having a triangle inside.

now, we know that,

"when a figure is lying inside an another figure, then the outside figure is known as circumscribed figure and the figure lying inside is referred to as the inscribed figure".

as we see that, the circles are containing the triangle completely.

thus, the circles are the circumscribed figures and the triangle is the inscribed figure.

hence, we get, 'an equilateral triangle is inscribed in a circle'.