Find the length of the unknown side. round your answer to the nearest tenth. image of a right triangle with a leg labeled 18 and hypotenuse labeled 75; the other leg is unknown and marked with a question mark. 65.4 70.5 72.8 93.0

H^2=x^2+y^2  (Pythagorean Theorem)

75^2=18^2+y^2

y^2=75^2-18^2

y^2=5625-324

y=√5301

y≈72.8

1. 0.3 •4 is the same as 4 groups of 0.32. 7•0.8 is the same as 7 groups of 0.83. it increases by 0.5 every time, so 0.5x4 it increases by 0.9 every time, so 0.9x5. 0.9•12=10.86. 0.47•5=2.35i can finish the next ones in a separate post