Answer:
4 minutes left
Step-by-step explanation:
20 - 16 = 4
With 10 to the power to a negative number, it's easier.
Here's a trick: The negative number is the places to the right of the decimal. The last number is a 1, while the rest are 0s.
From this, we get:
A) is right
b) just subtract ljm and kjm so 145-48 = 92°
c) 9x-25=7x+7 so here you put npq=mpq+mpn and you combine terms so it's now 2x=32 then divide by 2 on both sides and x= 16
now you just plug it into 3x-5 and you get 43°
(x+5)*7=133
7x+35=133
7x=98
x=98/7
x=14
Answer:
342
Step-by-step explanation: