Jamie and Saluna sold chocolate bars to raise money for their dance trip. Jamie
sold 1/2 of the box of chocolate Saluna sold 4/5
of Jamie's amount. What fraction of the box did
Saluna sell? WILL GIVE BRAINLIST

The manufacturer of a new product developed the following expression to predict the monthly profit, in thousands of dollars, from sales of the productwhen it is sold at a unit price of x dollars.-0.5x^2 + 22x - 224what is represented by the zero(s) of the expression? a.the profit when the unit price is equal to 0b.the unit price(s) when the profit is equal to 0c.the profit when the unit price is greatestd.the unit price(s) when profit is greatest

Ill mark the brainliest if you me with the these three questions 7,8,9

The square pyramid has a volume of 441 cubic inches. what is the value of x? 1/7x is the height x is the base