1. -3x+7-2[x+3]

2. 2x-4+3x-6

Can someone me my sister? she is in third grade. 50 points and brainlist! ones that are not answered. plz and thx!

What two criteria are needed for triangles to be similar

Asunflower was 20 1/2 inches tall. over the next 6 months, it grew to a height of 37 inches tall. what was the average yearly growth rate of the height of the sunflower? ? plz write a proportion to solve i will give you 100 points