Gustav has 35 dimes and quarters that total $5.00. solve to find how many quarters and dimes he has.

d+q=35
0.1d+0.25q=5
explain how you got it!

The graph below represents the number of dolphins in a dolphin sanctuary. select all the key features of this function.

Select the number of ways in which a line and a circle can intersect

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.