Working alone, it takes Asanji eight hours to dig a 10 ft by 10 ft hole. Brenda can dig the
same hole in nine hours. How long would it
take them if they worked together?

the functions have the same rate of change i think. i narrowed it down to this answer and "the rate of change of tour 1 is greater" but i got it wrong using that answer so im assuming its the answer above. (this is a question i also answered from the iready site if anyone needs a reference)

answer: a

step-by-step explanation: the answer is a due to the rule of symmetry; that a line of symmetry must divide a figure into 2 pieces that are the exact same, only reflected over a line of symmetry. b and c do not have lines of symmetry and would not divide the figure evenly, thus making the answer a.

2/3=10/15

1/5=3/15

10+3=13/15

2 13/15 is the answer