What is another way to write (3x1000)+(3x10)+(3x1/100)+(3x1/1000

What is the reflection image of (5,-3) across the line y = -x?

Iwill give ! if m∠a=59 and m∠3=81°, what is m∠b? m∠b= _[blank]_°

Abarbecue sold 26 hamburgers and hot dogs. hamburgers sell for $3.50 each and hot dogs sell for $2.00 each. if the barbecue made $70 in sales, determine and state the number of hot dogs sold.