Help me pls. Which decimal is less than 0.8?

]supplementary angles are two angles that add up to . • complementary angles are two angles that add up to degrees. • adjacent angles share a and a • congruent angles have the measure. • an triangle has one angle that is greater than 90 degrees. • a triangle with angles 45°, 45°, and 90° would be a triangle

When solving a logarithm equation, how do you find the missing variable ?

If jobs arrive every 15 seconds on average, what is the probability of waiting more than 30 seconds?