I need help plz giving brainlist

9/10 divide by -3/15 as a mixed number

Asap its important using the information in the customer order, determine the length and width of the garden. enter the dimensions. length: feetwidth: feet

The marked price of an article is 25% above its selling price and the cost price is 30% less than its marked price . find the discount percent and gain percent. only a brainlest can solve it i will mark you brainlest