Answer:
Betty = $600
Step-by-step explanation:
3/4 of Alice's salary is the same as 1/2 of Betty's salary
(3/4)a = (1/2)b
multiply both sides by 2
(3/2)a = b
Alice earns $200 less than Betty
b - a = 200
Substitute for b
(3/2)a - a = 200
(1/2)a = 200
multiply both sides by 2
a = 400
b = (3/2)400
b = 600
2/5m-1/5
Multiply the two into the parenthesis and then add the -4/5 and the 3/5.
B and C (I think they are the same)
Answer:
16pi cm^3
Step-by-step explanation:

v= (pi ·4^2 ·3): 3= 16pi
Answer:
y = 3/5x + 3
Step-by-step explanation:
→ Write down in y = mx + c
y = 3/5x + c
→ Substitute in coordinates
0 = -3 + c
→ Find c
c = 3
→ Rewrite
y = 3/5x + 3