ASAP! Raul needs to make a soil mixture of 2/5 sand, 2/5 clay, and 1/5 peat moss to pot his plants. He has 75 pounds of sand. How many total pounds of soil will Raul have if he adds clay and peat moss to the sand to make the correct mixture? 112.5 pounds

a 112.5 pounds
b 150 pounds
c 225 pounds
d 187.5 pounds

For problems 29 - 31 the graph of a quadratic function y=ax^2 + bx + c is shown. tell whether the discriminant of ax^2 + bx + c = 0 is positive, negative, or zero.

An office supply company conducted a survey before marketing a new paper shredder designed for home use. in the survey, 80 % of the people who tried the shredder were satisfied with it. because of this high satisfaction rate, the company decided to market the new shredder. assume that 80 % of all people are satisfied with this shredder. during a certain month, 100 customers bought this shredder. find the probability that of these 100 customers, the number who are satisfied is 69 or fewer.

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