Answer:
x= 6, -7
Step-by-step explanation:
The answer is y=-8 I’m pretty sure
The second angle would be 140⁰. When two angles are supplementary, they add up to 180⁰.
180⁰-40⁰=140⁰
Answer:
Step-by-step explanation:
area of top=7×6=42 yd²
area of bottom=3×6=18 yd²
area of two rectangles=2[4×6]=48 yd²
area of two trapezoids=2[1/2(7+3)×3.5]=35 yd²
total surface area=42+18+48+35=143 yd²
10.99x = 3.99x + 280
7x = 280
x = 40
They must sell 40 T-shirts to break even