Help please?
What is the value of 4x + 3y - z, when x = 2, y = -3 and z = 1 *

-2

Step-by-step explanation:

When you fill it in you get 4(2)+3(-3)-1 then multiply and add

70

step-by-step explanation:

2*5=10

4*15=60

60+10=

70

percentage - 25%

probability - 0.25

we know,

total amount of students in class = 20

total boys = 10

total girls = 10

no of girls who wear glasses = 10/2 = 5

probability of choosing a girl with glasses is =

number of girls wearing glasses/total number of students in the class = 5/20

thus, percentage of selecting a girl wearing glasses will be

= 5/20 × 100

= 5 × 5

25%

therefore,

probability will be 0.25

happy to

pls mark as brainliest