Rebecca is x years old mary is 8 years older than rebecca
jill is 3 times older than mary
the sum of their ages is 67

a) form an equation in terms of x
b) solve the equation and work out rebecca, mary, and jill's ages.

∠1 and ∠2 are complementary. ∠1=x°∠2=(3x+30)° select from the drop down menu to correctly answer the question. what is the value of x? . a.15 b.25 c.30 d.40 e.55

What is the sum of these mixed numbers 2 1/8 + 4 3/8

Determine the number of outcomes in the event. decide whether the event is a simple event or not. upper a computer is used to select randomly a number between 1 and 9 comma inclusive. event upper b is selecting a number greater than 4. event upper b has nothing outcome(s). is the event a simple event? (yes or no) because event upper b has (fewer than, exactly, more than) one outcome.