Joan and Kylie are shopping at the mall. Joan buys a pack of socks for $7. She also buys nine T-shirts, each marked at the same price. She spends a total of $79. Kylie buys a pack of water balloons for $3.
She also buys seven t-shirts, each marked at the same price. Kylie spends a total of $59. Identify
which equation represents Joan's purchases and which one represents Kylie's purchase.
9.r + 7 = 79
I Select)
70 + 9 = 79
| Select)
73 + 3 = 59
| Select ]
3x + 7 = 59
| Select)

y-1700=200(x+4)

step-by-step explanation:

200(x+4) is 200x + 800 she is saving 200 per week x is the weeks and the -1700 is. us that’s howmuch she already had

did u ever get the answers? i need

cool stunts are flippin i think

sitting on a chair

and using stick feet

ending amount = beginning amount / (2^n)

where "n" = number of half-lives (or elapsed time / half-life)

ending amount = 50 mg / (2 ^10 / 5.3)

ending amount = 50 mg / (2 ^ 1.8867924528)

ending amount = 50 m / 3.6981210597

ending amount = 13.5203794557 mg

or about 13.5 mg remain

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