Someone pls help, this is really important

Mr angulo buy 5/8 pound of red grapes and 3/8 pound of green grapes.how many pounds of grapes did mr angulo buy

Find the inverse of the given function. f(x)= -1/2sqr x+3, x greater than or equal to -3

The sum of the two shortest sides of a triangle must be greater than length of the longest side .one side of triangle abc measures 8cm .the longest side of triangle abc measure 14 cm