When do you need to write the 1 in an algebraic expression?

Identify whether the figure has plane symmetry, symmetry about an axis, or neither.

Yo y do yall have 2 stars that means yall wrong bro

Antonia and carla have an equivalant percentage of green marbles in their bags of marbles. antonia has 4 green marbles and 16 total matbles. if carla has 10 green marbles , how many total marbles does carla have