∠a and ∠b are vertical angles with  m∠a=x and  m∠b=4x−30 . what is m∠a ?

Mr. vector door is buying two new cowboy hats all together the hats cost $75.12 the second heart cost twice as much as the first hat what is the price of the more expensive at round to the nearest hundredth

Given sin28.4=.4756, cos28.4=.8796, and tan28.4=.5407 find the cos of 61.6

I’m how many different ways can she give the four remaining flowers to the rest of the teachers in the afternoon