Amaths teacher bought 40 calculators at $8.20 each and a number of other calculators costing $2.95 each. in all she spent$387. how many of the cheaper calculators did she buy?

Find an equation for the linear function which has slope -10 and x-intercept -7

Determine the number of outcomes in the event. decide whether the event is a simple event or not. upper a computer is used to select randomly a number between 1 and 9 comma inclusive. event upper b is selecting a number greater than 4. event upper b has nothing outcome(s). is the event a simple event? (yes or no) because event upper b has (fewer than, exactly, more than) one outcome.

43lbs of tomatos cost $387. how much would 41lbs cost