It rained 6.453 cm on monday and 8.74 cm on tuesday how much rain fell during the two days? round to the tenth of a centimeter.

Pls the last one and it has to be like number 6

The graph of f(x) is obtained by reflecting the graph of f(x)=-3|x| over the x-axis. which equation describes f(x)? a) f(x)=3|x| b) f(x)=|x+3| c) f(x)=-3|x| d) f(x) = - |x+3|

Can someone me on this math worksheet about finding the given variable for these angles, and whether the triangles are similar. i really need these answers i’m so confused: ( !