That would be Nets 1, 4 and 5.
Answer:
Step-by-step explanation:
Given

Required
Make t the subject

Cross Multiply


Collect Like Terms

Factorize:

Make t the subject

The value of 4 is 4 hundredths.
Answer:
maybe the palm tree is at 5 the rock at -2 and the sand dollar at 0?
or, somthing like that
Step-by-step explanation:
x * x = x^2
x * -3 = -3x
5 * x = 5x
5 * -3 = -15
x^2 -3x + 5x -15
x^2 + 2x -15
This function is a quadratic function, with an upwards parabola.