Question $15$ of $18$

b$.$ If $342$ of those polled do not support self$-$driving cars, how many support it$?$

c$.$ If $1,000$ adults were polled, and $290$ of those that support self$-$driving cars had no post$-$secondary credential, how many of those that support self$-$driving cars had a post$-$secondary credential?

d$.$ If $1,000$ adults were polled, and $290$ of those that support self$-$driving cars had no post$-$secondary credential, how many of those that do not support self$-$driving cars had no post$-$secondary credential?