Which number like correctly shows 0.8+0.3
answer are the pictures be quick please I’m timed

The perimeter of a rhombus with a side of 6 is 24

If sin θ=24/25 and 0 less than or equal to θ less than or equal to π/2, find the exact value of tan 2θ. answers; a) -527/336 b) -336/527 c)7/24 d) 24/7

Which statement justifies why angle ebc measures 90?