7. A merry-go-round with a diameter of 80 feet has horses placed in circles 40 ft, 35 ft, and 30 ft from the center. The horses in the 40 ft circle make
one revolution every 20 seconds. Find the linear velocity, in feet per
minute, of the horses in the 30 ft circle. Round to the nearest tenth.

The number of revolutions of two pulleys is inversely proportional to their diameters. if a 24-inch diameter pulley making 400 revolutions per minute is belted to an 8-inch diameter pulley, find the number of revolutions per minute of the smaller pulley.

The triangles in the diagram are congruent. if mzf = 40°, mza = 80°, and mzg = 60°, what is mzb?

Sara has been reading about different types of financial grants, including federal pell grants, academic competitiveness grants, smart grants, and teach grants. which statement about these grants is true? filling out a fafsa will not her apply for these grants. she will not have to pay back any funds she receives from these grants. these grants only go to students with less than a 3.0 gpa. she will have to pay back all the funds she receives from these grants.