The diagram shows a sector of a circle of radius 3.8 cm. The arc length is 7.7cm.
Calculate the value of y,

Find the vertex of the function given below y=x^2-6x+1

Each month, a shopkeeper spends 5x + 14 dollars on rent and electricity. if he spends 3x−5 dollars on rent, how much does he spend on electricity? for which value(s) of x is the amount the shopkeeper spends on electricity less than $100? explain how you found the value(s).

What is the interquartile range of this data set? 2, 5, 9, 11, 18, 30, 42, 48, 55, 73, 81