Answer:
B. 62.93 cm²
Step-by-step explanation:
Formula to find area of triangle : 
* b * h
* 20.3 * 6.2
62.93 cm²
Answer:
k = 23
Step-by-step explanation:
Answer:
Expression
Step-by-step explanation:
Remember, an expression is a mathematical phrase that contains numbers, variables, or both. Expressions never have an equal sign. An equation is a mathematical sentence that says two expressions are equal. My work don't copy®️
The amount of balls in a given layer can be found by squaring the layer it is in
4 layers
top layer (1st) is 1
2nd is 4
3rd layer is 9
4th is 16
add them up
1+4+9+16=30
30 in that pyramid
