Answer:
I think it would be 5(4b+7)
Step-by-step explanation:
I divided both terms by 5.
Answer:
Angle ABC,
Step-by-step explanation:
Please give more detail to your question, this doesn't help at all...
Find their gradients using the change in y coords divided by the change in x coords. once you have the gradients (or slopes), multiply them by eachother - if the product is (-1) then theyre perpdendicular, if not, they are either parallel or intersect at a point
Alternate angles - happy to help!