In which of the following quadrilaterals are opposite angles always congruent? check all that apply.

a square
b parallelogram
c rhombus
d quadrilateral

This race was first held in 1953 on august 16th. every decade the race finishes with a festival. how many years is this?

Which of the following graphs represents the function f(x) = 2^x

The swimming pool is open when the high temperature is higher than 20∘c. lainey tried to swim on monday and thursday (which was 33 days later). the pool was open on monday, but it was closed on thursday. the high temperature was 30 ∘c on monday, but decreased at a constant rate in the next 33 days. write an inequality to determine the rate of temperature decrease in degrees celsius per day, d, from monday to thursday.