Answer: When a solid can be mapped onto itself by a reflection in a plane, it has reflectional symmetry.
Step-by-step explanation:
Answer:
4
a+16=20
a=20-16
a=4
A.12 grapes, 23 plums
1. solve all the equations by multiplying each number by how much each item is worth
2. A: 290 =(12× 5)+(10×23)
B: 100 =(10×5)+(5×10)
C:125 =(5×5)+(10×10)
D:235 =(23×5)+(12×10)
