4. what is the sale price of a pair of socks with aregular price of $9.95 which are on sale for 30% off? $30.00$2.99$6.97$12.94$0.30

Afootball is throw by a quarterback to a receiver

The? half-life of a radioactive substance is 20 years. if you start with some amount of this? substance, what fraction will remain in 120 ? years

Suppose y varies directly with x. write a direct variation equation that relates x and y. then find the value of y when x=12 y=7 when x=3