What number multiples to -1 and adds to -50

Write each expression in exponential form and find its value.| ! 2 x 2 x 2 x 2

Yosef can eat 21 jamuns while rose can eat just 15 . complete the blank. yosef can eat % more jamuns than rose.

Student price tickets to a movie are $1 and non student tickets are $2 . 350 tickets are sold and the total amount made is $450. there were 250 student tickets sold . true or false .