Ascientist has two solutions which she has labeled solution a and b. each has salt. she knows that solution a is 20% and solution b is 90% salt. she wants to obtain a mixture that is 35% salt and is 70 ounces. how many ounces of each solution should she use.

i use my brain for prombles like this maybe you could try it

step-by-step explanation:

363 square inches

step-by-step explanation:

surface area of a pyramid is b + 1/2ph

b is the area of the base: 11 x 11 = 121

p is the perimeter of the base: 11 + 11 + 11 + 11 = 44

h is the height of the pyramid: 11

121 + 1/2(44)(11)

121 + 242

363