超弱的数学问题

mandy198379

大家不要笑话我的，我的英语不好，现有OG数学问题问一下的。谢谢

If the number n of calculators sold per week varies with the price p in dollars according to the equation n=300-20p,what would be the total weekly revenue from the sale of $10 calculators?

$100

$300

$1000

$2800

$3000

sunshinerab

$10指每个计算器的价格，代入公式：n=300-20*10--> n=100个, 总收入：100*$10=1000.