1) Resolva em R as equações a seguir: a) 3 + x = 0
b) 23x + 2 = 2
c) 12 - 7 + 4x = 25
d) 5x - 3x = 30
e) 4x + 10 = 45 - 3x​

The price of an item has been reduced by 30%. the original price was $30. what is the price of the item now ?

Someone answer asap for ! a ball is rolled down a ramp. the height, f(x), in meters, of the ball x seconds after it is released is modeled by the function f(x) = x²- 10x + 25 for all values of x from 0 to 5. which statement about the ball is true? a. the maximum height of the ball is 5 meters b. the height of the ball increases from 0 to 5 meters above the ground. c. the ball has traveled 5 meters when it reaches the bottom of the ramp. d. the ball has been traveling for 5 seconds when it reaches the bottom of the ramp

Which expression is the factorization of x^2+10+21