Answer:
-1.3
Step-by-step explanation: you distribute the negative sign to -2.9 so it turn to positive 2.9 and your left with -4.2 + (-2.9) = x and then you solve by doing -4.2 + 2.9 to get -1.3
Given polynomials:
21x³ and 28x^5
Factorise each term:
21x³ = 3 x 7 x x³
28x^5= 4 x 7 x x² x x³
So, greatest common factor = 7 x x³ =7x³
Answer: 7x³
Answer:
D
Step-by-step explanation:
Answer:
tip: $7.50
total: $57.50
Step-by-step explanation:
you change the 15% into a decimal by moving the the decimal point 2 spots to the left so now you have .15
next do .15 * 50 to get 7.5, which is the tip
now to find the total, add 7.5 + 50 to get 57.5