A little worker has a metal alloy that is 20% copper in another hour we got a 60% copper. How many kilograms of each alloy sugar metal worker come by to create 90 kg of a 52% copper alloy?

Aline has a slope of 1/4 and passes through point (0.4,-1/2). what is the value of the y-intercept?

How do you find the area of a triangle

An apartment has a replacement cost of $950,000 and contents valued at $1,450,000. it has a classification of a and a territory rating of 3. find the annual premium a) $10,185 b) $9,230 c) $3,155 d) $13,830