PLEASE HELP PART A

Diego deposited $10,000 for 4 years at a rate 6% simple interest. find the amount of interest Diego earned after 4 years.

PART B

If Diego closes his account after the 4 years, how much money will he have total?

Total Amount=

Arley is building a model of a city map. in one part of the city, three roads form a right triangle, which harley draws as triangle abc, with the following measures: m∠b=90° and m∠a=30°. in his scale model, the hypotenuse of triangle abc, ac¯¯¯¯¯¯¯¯, has a length of 817−−√ cm. what is the value of a (the length of bc¯¯¯¯¯¯¯¯)?

Simplify the expression 10/11(22z) + (a+5) -1

Which value of y will make the inequality y< -1 false?