Please answer this!! Select all that apply.

Which of the following phrases mean the same thing as "four above zero"?

negative four
four more than zero
four greater than zero
the opposite of positive four
four less than zero
positive four

Acity plans to build a new rectangular-shaped park. the perimeter of the park will be 940 meters. the width of the park will be 300 meters. what will be the length, in meters, of the new park?

Serena is making an experiment. for that, she needs 20 grams of a 52% solution of salt. she has two large bottles of salt water: one with 40% and the other with 70% of salt in them. how much of each must she use to make the solution she needs? i am in need of

What is the value of x in the equation7x+2y=48 when y=3