Solve for x: = q+r Please explain your answer too! Thank you!

Jonathan pays $1.90 per pound for potatoes. he buys 8.3 pounds of potatoes. he determines that he will pay $15.77, before tax, for the potatoes. which best describes the reasonableness of jonathan’s solution? jonathan’s answer is reasonable because there are two decimal places in the factors and two in the product. jonathan’s answer is unreasonable because there are three decimal places in the factors and two in the product. jonathan’s answer is reasonable because is 16, and 16 is close to 15.77. jonathan’s answer is unreasonable because is 8, and 8 is not very close to 15.77.

What value of x is in the solution set of 4x - 12 s 16 + 8x? -10 -9 -8 -7

:24% of students in a class are girls. if there are less than 30 students in this class, how many students are there? how many girls are there?