Grace, Maci, and Kendra all have a large collection of earrings. The number of pairs of earrings in Grace’s collection is represented by x.
The number of pairs of earrings in Maci’s collection is three times the number of pairs in Grace’s collection.
Kendra has 4 earrings in her collection.
The total number of pairs of earrings in all three girls’ collections is 52.

How many pairs of earrings are in Maci’s collection?

36

Step-by-step explanation:

Kendra has 4 so 52-4 (so it's out of the way) now you have 48

Divide 48 by 3 (leaves you 16). It can't be 16 because you have to add 16 and the sum of 16 x 3. So, go down a few numbers

12 + (12x3) = 48 plus Kendra's 4 is 52

b. 24 mm

step-by-step explanation:

use the pythagorean theorem.

a^2 + b^2 = c^2

a^2 + 7^2 = 25^2

a^2 + 49 = 625

a^2 = 576

a = 24

answer: b. 24 mm

160

step-by-step explanation:

idk

i hope i