Determine if the following statement is sometimes, always, or never true. the central angle of a minor arc is an acute angle. a. sometimes c. never b. always

If x + 10 = 70, what is x? a. 40 b. 50 c. 60 d. 70 e. 80

Two planes leave an airport at the same time, one flying east, the other flying west. the eastbound plane travels 20 mph slower. they are 1600 mi apart after 2 hr. find the speed of each plane.

Choose the number sentence that shows the identity property of addition. a. 122 = 61 + 61 b. 62 = 1 + 61 c. 61 = 0 + 61