A store sells the basic model of a phone for $60 and the upgraded model for $200. It costs the store $10 to buy each basic model
and $50 to buy each upgraded model from the phone company. On Tuesday, the store has $1,800 in sales for these two models,
and it paid the phone company $400 to buy these phones. How many upgraded models did the store sell on Tuesday?
Gondor nanes

over the argument its not good to fight.

14

step-by-step explanation:

the answer is b: 18

step-by-step explanation:

use the pythagorean theorem to .

a^2+b^2=c^2

plug 18 for "r"

the 2 legs are 18 and 24

18^2+24^2=c^2

324+576=c^2

900=c^2

c=30

30-12=18

18 is the radius

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alaska, florida, nevada, south dakota, texas, washington and wyoming, tenessee and new hampshire.

step-by-step explanation: