Answer:
Tim needs 6 more dollars
Step-by-step explanation:
7x3=21 | 21-15=6
6$
3pizzas=7*3=21
he have 15 so
21-15=6$ will be needed
well the first one is x^3 y^2 z 7root x^2 z
x is less than twenty one
2x -5(x-3) = -4 +5x -29
2x-5x+15 = -4 +5x -29
-3x +15 = 5x -33
-8x= -48
x=6
C = 2πr = 2 * 3.14 * 20 = 125.6
It is because you have to get rid of the power of 2 from c. In order to get rid, you have to square root it on both sides :
c² = 74
√(c²) = √74
c^(1/2×2) = √74
c = √74
Using Indices formula, (a^m)^n = a^(mn)
