Answer:
-2
Step-by-step explanation:
Subtracting a negative number is adding the positive number of that
-3 + 1 += -2
10x^2 - (2 - 3x) + (5x - 3x^2)
=7x^ + 2x - 2
Answer:
A = 15u²
Step-by-step explanation:
Area of a Trapezoid Formula:

Plug in our values (h = 3, b1 = 7, b2 = 3)

Now we evaluate


The distance from third base to first base is 127.3 feet.
Answer:
Step-by-step explanation:
t = tutoring and g = grocery store
t + g = 15......t = 15 - g
15t + 9g = 159
15(15 - g) + 9g = 159
225 - 15g + 9g = 159
-15g + 9g = 159 - 225
-6g = - 66
g = -66/-6
g = 11 <===== 11 hrs worked at the grocery store
t + g = 15
t + 11 = 15
t = 15 - 11
t = 4.....4 hrs tutoring