Natalie and Juan collect marbles. The number of marbles that Natalie has is 4 more than
3 times the number of marbles Juan has. If m represents the number of marbles Juan
has, which of the following expressions represents the number of marbles Natalie has?
O A) 4m + 3
OB) 3m + 4
OC) 3m-4
OD) 4m - 3

Can someone me with this problem i don't understand i need

To finance her community college education, sarah takes out a loan for $2900. after a year sarah decides to pay off the interest, which is 4% of $2900. how much will she pay

You are standing next to a really big circular lake. you want to measure the diameter of the lake, but you don't want to have to swim across with a measuring tape! you decide to walk around the perimeter of the lake and measure its circumference, and find that it's 400\pi\text{ m}400? m. what is the diameter dd of the lake?