In a recent golf match, desmond’s score was 3 less than george’s score. their combined scores totaled 187. let d represent desmond's score and g represent george's score. which pair of equations can be used to determine their scores?
a. d + g = 3
187 + d = g
b. d + g = 187
d – g = 3
c. d = g – 3
d + g = 187
d. g = d – 3
d + g = 187
explain as well

The bottom of ignacio's desktop is 74.5cm from the floor. ignacios sits in his adjustable chair, and the tops of his legs are 49.3cm from the floor. each clockwise rotation of the knob on the chair raises ignacio's legs by 4.8cm. write an inequality to determine the number of clockwise rotations, r, ignacio could make with the knob without his legs touching the desk.