70 pts !
mr. chang’s class has 28 students, 4/7 of whom are girls. which equation shows how to determine the number of girls in mr. chang’s class?

Given the quadratic function f(x)=3x^2-24x+49 a. use “completing the squares” to convert the quadratic function into vertex form b. state the vertex c. find the x and y intercepts d. graph the function

Jimmy can run 3.5 miles in 20 minutes. how far can ne run in one hour and ten minutes?

(05.02) mr. morris is going to save money and replace his sailboat's mainsail himself. he must determine the area of the mainsail in order to buy the correct amount of material. calculate the area of the parallelogram to determine how much material should be purchased. be sure to explain how to decompose this shape into rectangles and triangles. describe their dimensions and show your work.