Renee ate 1/4 of a pizza, and sumi ate 1/3 of the same pizza. how much of the pizza did they eat in all?

 Renee and Sumi ate of the pizza.

Step-by-step explanation:  Given that Renee ate of a pizza, and Sumi ate of the same pizza.

We are to find the part of the pizza they ate in all.

The part of the pizza ate by both of them is equal to the sum of the fractions of the pizza ate by them.

Therefore, the part of the pizza ate by Renee and Sumi is given by

Thus, Renee and Sumi ate of the pizza.

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'.

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step-by-step explanation: