Tiffany weighed 7pounds 12 ounces when she was was born. her weight doubled after four mouths. how much did tiffany weigh after four mouths?

At the many chips cookie company they are serious about the number of chocolate chips in their cookies they claim that each cookie hasn't c chips. if their claim is true there will be 200 chips in 10 cookies

The marked price of an article is 25% above its selling price and the cost price is 30% less than its marked price . find the discount percent and gain percent. only a brainlest can solve it i will mark you brainlest

Which value of m will create a system of parallel lines with no solution? y= mx - 6 8x - 4y = 12