Bobby deleted 45 songs from his iphone. if the ratio the songs he deleted to songs he kept was 9: 10, how many songs he originally have on his iphone?

Apark is in the shape of a rectangle. the park authorities are planning to build a 2-meter-wide jogging path in the park (shown as the shaded region in the image). what is the area of the jogging path? plz

What is the value of x in the this question ?

Jude is making cement for a driveway. the instructions show the amount of each ingredient to make 1 batch of cement. complete each statement to adjust the ingredients for each new situation if jude uses these instructions.