OAB is a sector of a circle centre O and radius 15 cm and AB 16 cm. Calculate to s. f. A) The size in degrees of angle AOB. B) The area in cm square of the shaded region.

Ascatterplot is produced to compare the size of a school building to the number of students at that school who play an instrument. there are 12 data points, each representing a different school. the points are widely dispersed on the scatterplot without a pattern of grouping. which statement could be true

If 10 men take 18 days to mow 60 acres of grass, how long will 15 men take to mow 80 acres?

If x is 6, then 7x= a. 13 b. 42 c. 42x d. 76