The length of a rectangle is 12 inches more than it's width what is it's width of the rectangle if the perimeter is 42 inches

For what values of b will f(x)= logbx be a decreasing function? (16 )

12 out of 30 people chose their favourite colour as blue caculate the angle you would use for blue on a pie chart

Answer asap and if you do you will get brainliest. catherine buys a gallon of ice cream from the store. after taking it home, she eats a fifth of a gallon of ice cream. her sister eats some of the ice cream as well. if two-thirds of the original amount of ice cream is left, then what fraction of a gallon of ice cream did her sister eat?