Brian has reduced his cholesterol level by 20% by following a strict diet and regular exercise. If his original level was 220, what is his cholesterol level now?

What are two ways to write 4z in words

Ryan works mowing lawns and babysitting. He earns $8.20 an hour for mowing and $7.70 an hour for babysitting. How much will he earn for 3 hours of mowing and 7hours of babysitting?

5 (x-3) / 8 + 2=7 solve?

What is the answer to: 1/6d+2/3 = 1/4 (d-2)

9e + 4 = - 5e + 14 + 13e solve for e

Before school, Janine spends 1/10 hour making her bed, 1/5 hour getting dress, and 1/2 hour eating breakfast. What fraction of an hour does she spend doing these activities?

Based on past records, a salesperson has a 15% chance of closing a sale with new customers. How many sales can the salesperson expect with his next 5 customers? A. 0.75 B. 1.55 C. 3.5 D. 4.25

Jimmie invested $27,500 at 6.27% compounded continuously. What will Jimmie's account balance be in 50 years?

The area of a cross section at station 4+50 is 10.31 sq. in., and at station 5+00 is 14.18 sq. in. The horizontal scale of the cross section is 1" = 40' and the vertical scale is 1" = 10'.

Calculate the inverse of the matrix and find the values for a, b, c, and d: A=[4 12 1 10] A-^1=[a/14 b/7 c/28 d/7]