When was the first coin-operated video game introduced?

1970s
1950s
1980s
1960s

i'm sure its a.. but i want to make sure it

Which of these things did galileo not do? a. stop publishing his scientific work after being convicted of heresy b. invent the concept of acceleration c. experiment with rolling balls down ramps of increasing steepness to test how objects would fall d. argue that earth moves around the sun e. make up a thought experiment that indicated that objects would fall at the same rate

What are the positive environmental trends seen today? many industries are taking measures to reduce the use( _gold, carbon dioxide, ozone_) of -depleting substances and are turning to(_scarce, renewable, non-recyclable_) energy sources though they may seem expensive. choose one of those 3 option to fill the

The following are budgeted data: january february march sales in units 16,200 22,400 19,200 production in units 19,200 20,200 18,700 one pound of material is required for each finished unit. the inventory of materials at the end of each month should equal 20% of the following month's production needs. purchases of raw materials for february would be budgeted to be: