Which equation is correct regarding the measure of ∠1?

a. m∠1 = 1/2(a – c)
b. m∠1 = 1/2(a + c)
c. m∠1 = 1/2f(b – d)
d. m∠1 = 1/2(b + d)

While scuba diving, rajeev dove to a depth of 12.6 feet below the surface of the water and then descended another 8.7 feet. what expression can be used to find rajeev's new position? 12.6 – 8.7 –12.6 – 8.7 –12.6 – (–8.7) 12.6 – (–8.7)

What function has a range {yly< 5}? question on picture above^

Find the unit rate. enter your answer as a mixed number. a fertilizer covers 2/3 square foot in 1/2 hour.