amirah can type 720 words in 16 minutes, lixin can type 828 words in 18 minutes and shirley can type 798 words in 19 minutes , who is the fastest typist ?

Lixin is the fastest typist

Step-by-step explanation:

Amirah = 45

Lixin = 46

Shirley = 42

We divide the words by minutes which is basically Unit rate

So we take each person and divide by their words and minutes

ALWAYS when ur finding unit rate divide the buggest number by the smallest!

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'.

explanation:

step-by-step explanation: