Select the statement in if-then form.
an acute angle measures less than 90 degrees

a. if an angle is an acute angle, then the angle measures less than 90 degrees.
b. if an angle is not an acute angle, then the angle measures less than 90 degrees.
c. if an angle measures less than 90 degrees, then it is an acute angle .
d. if an angle measures less than 90 degrees, then it is not an acute angle .

Afootball is throw by a quarterback to a receiver

If my mom gets $13.05 an hour, and she works from 3: 30 to 10: 45 in the morning, how much money does my mom make?

Aspacecraft can attain a stable orbit 300 kilometers above earth if it reaches a velocity of 7.7 kilometers per second. the formula for a rocket's maximum velocity v in kilometers per second is vequalsminus0.0098tplusc ln upper r, where t is the firing time in seconds, c is the velocity of the exhaust in kilometers per second, and r is the ratio of the mass of the rocket filled with fuel to the mass of the rocket without fuel. find the velocity of a spacecraft whose booster rocket has a mass ratio of 20, an exhaust velocity of 2.1 km/s, and a firing time of 15 s. can the spacecraft achieve a stable orbit 300 km above earth?