Alcatuieste enunturi cu urmatoarele ortograme: sa/s-a, sau/s-au, intr-o, dintr-o, intr-un, dintr-un

What is the quadric regression equation that fits these data

Arectangle has a width of 5 cm and a length of 10 cm. if the width is increased by 3, how does the perimeter change?

With alll of except for the 2 that i did already