PLEASE ANSWER FAST
answer the ones that are circled only plzzz

Assume that y varies inversely with x. if y=1.6 when x=0.5 find x when y=3.2

If cos(θ)=2853 with θin q iv, what is sin(θ)?

Fill in the missing exponents in each box and show how you found the answer. (4 points: 2 points for each correct answer with work shown) c. (9^4)^? =9^1 d.(5^? )^3=5^1 *question marks represent the boxes